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Zyvox linezolid 100 mg/5mL Granule, For Suspension, 150 mL — NDC 00009-5136-01 package photo
Label image from the product's FDA listing (DailyMed) — may show a different pack size or an older label revision.

Zyvox linezolid 100 mg/5mL Granule, For Suspension, 150 mL — NDC 0009-5136-01 (Billing 00009-5136-01)

by Pharmacia & Upjohn Company LLC · 150 mL in 1 BOTTLE

This is a package of 150 mL of Zyvox linezolid 100 mg/5mL Granule, For Suspension from Pharmacia & Upjohn Company LLC, no longer marketed (first marketed Apr 2000), no longer in the FDA NDC Directory. It is the main listing for this product, which comes in 2 package sizes.

NDC 00009-5136-01
🏷️ FDA NDC (as labeled) 0009-5136-01 billing pads the labeler segment with a zero
This package
Contains150 mL Pack sizes2 compare ↓
Main listing for product 0009-5136 · Also comes in: 150 ml 0009-5136-04
Rx only Brand Discontinued Non-controlled ⚠ Discontinued by firm ⇄ Compare with another NDC
🗂️ FDA directory synced Oct 1, 2026 · this listing last changed Jul 24, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

⚠️
Excluded from the active FDA NDC Directory. The labeler reported this product as discontinued, so it is excluded from the active NDC Directory. A label may still appear on DailyMed, but the NDC is no longer in the current FDA NDC Directory. Search the FDA NDC Directory ↗

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 0009-5136-01
Product NDC 0009-5136
11-digit billing NDC 00009513601
NCPDP billing unit ML — per mL (volume)
RxCUI 262091, 311345, 311347, 581614, 1662278, 1662280, 1662285, 1662286
UNII ISQ9I6J12J
UPC 0300095138023
Application # NDA021132
SPL Set ID 6e70e63b-bfd5-478d-a8ee-8ba22c9efabd
Established class (EPC) Oxazolidinone Antibacterial
Chemical class Oxazolidinones
DEA schedule Non-controlled
Marketing category NDA
Marketing status Discontinued
FDA listing status Discontinued by firm
Marketing start 2000-04-18
Route ORAL
Dosage form GRANULE, FOR SUSPENSION
Substance LINEZOLID
TE code (Orange Book) AB · RLD · RS

Drug-database identifiers Medi-Span GPI and First Databank GCN / HICL / AHFS classification

GPI-14 16230040001920
GPI class Zyvox
GCN Seq No 045132
GCN 26871
HICL code 021157
Ingredient (HICL) Linezolid
HIC1 code W
Therapeutic class — broad (HIC1) Anti-Infecting Agents
HIC2 code W1
Therapeutic class — intermediate (HIC2) Antibiotics
HIC3 code W1O
Therapeutic class — specific (HIC3) Oxazolidinone Antibiotics
AHFS code 08:12.28.24
AHFS class Oxazolidinone Antibiotics
FDB label name ZYVOX 100 MG/5 ML SUSPENSION
FDB brand name Zyvox
Legend status F — Federal legend — prescription drug or device
Quick answers
  • GSN (GCN sequence number): 045132
  • GCN: 26871
  • GPI-14 (Medi-Span): 16230040001920
  • HICL (First Databank): 021157
  • AHFS class code: 08:12.28.24
  • RxCUI (RxNorm): 262091
Why two NDCs? The FDA registers this code as 0009-5136-01 — a 4-4-2 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the labeler segment → 00009-5136-01. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

RxNorm drug class

This medicine belongs to the Oxazolidinone Antibacterial class.

Pharmacologic class Oxazolidinone Antibacterial
Drug family (ATC) Other antibacterials
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.

Clinical

Label name ZYVOX 100 MG/5 ML SUSPENSION Ingredient Linezolid
📗 Our plain-language guide HelloPharmacist
  • It treats certain bacterial infections caused by Gram-positive bacteria. These include hospital- and community-acquired pneumonia, skin infections, and vancomycin-resistant Enteroc...
  • Take it exactly as prescribed, usually every 8 or 12 hours, by mouth or through a vein. You can take it with or without food. Finish the full course your prescriber gave you.
  • Diarrhea, nausea, vomiting and headache are the most common. Dizziness, rash and taste changes also happen. Call your doctor if they are severe or don’t go away.
  • Call for blurred vision or color changes, numbness or tingling, severe diarrhea, repeated vomiting, seizures, or unusual bleeding. Also call for high fever, stiff muscles, agitatio...
📖 Read our full Linezolid guide →
7
Nutrient depletion considerations

Linezolid may be associated with lower levels of 7 nutrients — worth a chat with your pharmacist, not a cause for alarm.

🧪 Full Linezolid nutrient depletion report →
An association is not a deficiency. Educational only — don't start or stop anything without professional guidance.
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

Pricing

A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.

Price systemPer mLPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data.
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
ℹ️
No price is published for this exact package yet. CMS surveys NADAC per package size, so a different pack of the same drug often has one.
Try another pack size: 150 ml
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

Packaging — all sizes for this product

Package NDCDescription Marketing startMarketing endStatus
00009-5136-01 You're viewing this Main listing 150 mL in 1 BOTTLE 2000-04-18 — Discontinued by firm
00009-5136-04 0009-5136-04 150 mL in 1 BOTTLE 2023-03-27 — Active

Pack size FAQ

What quantity is in this package?
This package contains 150 mL — 150 ml in 1 bottle.
How does this package differ from NDC 00009-5136-04?
Both are Zyvox linezolid 100 mg/5mL Granule, For Suspension — the drug itself is identical. This page's package is the 150 mL one, while NDC 00009-5136-04 is the 150 ml package.
What NDC number is used to bill for this package of Zyvox linezolid 100 mg/5mL Granule, For Suspension?
Use the 11-digit billing form listed in the identifiers section of this page. Pharmacy and medical claims use the 11-digit form; the FDA label may print a shorter form of the same code.

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Linezolid 100 mg/5mL 00054-0319-50 Hikma 150 ml $2.736 AB Availability likely —
Linezolid 100 mg/5mL 31722-0865-25 Camber 1 bottle $2.736 AB Availability likely —
Linezolid 100 mg/5mL 60687-0754-05 American 1 bottle $2.736 AB Availability likely —
Zyvox 100 mg/5mLthis 00009-5136-01 Pharmacia 150 ml — AB Discontinued —
Linezolid 100 mg/5mL 59762-1308-01 Mylan 150 ml — AB Discontinued —
About this product: this is the brand-name version. FDA-approved generic versions are listed, and recent pricing/market data suggests they may be available.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

Availability & generic status

🏛️
2000
On the market since
Apr 2000
📍
2026
Currently FDA-listed
26 years listed
🔓
·
Generic versions listed
see equivalents
✅Generic appears available

FDA-approved generic versions are listed, and recent pricing/market data suggests they may be available — see Therapeutic equivalents.

Where does this data come from?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.

What it looks like

Color Yellow / White
ShapeOval
ImprintZYV;600
Size18 mm
ScoringNot scored
FlavorOrange
One label can cover several strengths, so colors may be combined — always confirm a loose pill against the dispensed prescription label or a pharmacist.
Where does this data come from?
Physical description (imprint, shape, color, scoring, coating) from this product’s FDA Structured Product Labeling (SPL), mirrored from DailyMed / openFDA.

Inactive Ingredients / Excipients

Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.

💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.

  • UNII Z0H242BBR1
    Aspartame is an artificial sweetener made from amino acids. It's added to medicines to improve taste, making bitter or unpleasant-tasting drugs easier to take.
  • UNII K679OBS311
    Carboxymethylcellulose sodium is a plant-derived thickening agent made from cellulose. In medicines, it acts as a binder to hold ingredients together, a disintegrant to help the tablet break apart, or a thickener in liquids.
  • UNII 2968PHW8QP
    A weak organic acid derived from citrus fruits or made through fermentation. It works as a buffer to control pH, a preservative to extend shelf life, and a flavoring agent in medications.
  • UNII 3OWL53L36A
    A natural sugar alcohol derived from seaweed or synthesized in the lab. It's used as a filler to add bulk, a sweetener in sugar-free formulas, and a disintegrant to help tablets break apart in the stomach.
  • UNII OP1R32D61U
    Microcrystalline cellulose is a purified form of cellulose, a natural fiber from plant sources. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and give the medicine its shape and size.
  • UNII ETJ7Z6XBU4
    Silicon dioxide is a naturally occurring mineral used as a glidant and anti-caking agent. It helps powder ingredients flow smoothly and prevents clumping during manufacturing and storage.
  • UNII OJ245FE5EU
    Sodium benzoate is a salt derived from benzoic acid, a preservative. It's added to medicines to prevent growth of bacteria, fungi, and other microorganisms that could spoil the product.
  • UNII 451W47IQ8X
    Sodium chloride is common table salt. It's used in medicines as a buffer to maintain proper pH, as a filler to add bulk, or to adjust the osmotic balance in liquid formulations.
  • UNII 1Q73Q2JULR
    Sodium citrate is a salt derived from citric acid. It works as a buffer to maintain the medicine's pH level and may also help improve taste or act as a preservative in the formulation.
  • UNII C151H8M554
    A natural sugar derived from sugar cane or sugar beets. It's used as a sweetener, filler, and binder to improve taste, add bulk, and help hold tablet or capsule ingredients together.
  • UNII TTV12P4NEE
    Xanthan gum is a thickening and stabilizing ingredient made from fermented corn or other sugars. It's added to medicines to improve texture, prevent separation of liquids and solids, and help the product stay consistent.

11 inactive ingredients listed in the exact product block matched to this NDC.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMed — ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.

Inactive ingredient FAQ

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

Manufacturer & labeler

LabelerPharmacia & Upjohn Company LLC
Application holderPFIZER INC
FDA applicationNDA021132 (NDA)
Labeler code00009
First marketedApr 2000
Product typeHuman Prescription Drug
Portfolio106 products on file
The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Very long sections are excerpted here and marked; the full text is on DailyMed (linked in the sources below). Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage ⏱️ Dosage and Administration 💊 Dosage Forms and Strengths ⛔ Contraindications ⚠️ Warnings and Cautions 🤒 Adverse Reactions 🔄 Drug Interactions 👥 Use in Specific Populations 🤰 Pregnancy 🧒 Pediatric Use 🧓 Geriatric Use 🆘 Overdosage 🧬 Clinical Pharmacology 🧬 Mechanism of Action 📦 How Supplied / Storage and Handling 📦 Storage and Handling 📋 Description 💬 Information for Patients 🧬 Pharmacokinetics 🧬 Pharmacodynamics 🔬 Clinical Studies 🧪 Nonclinical Toxicology 📄 Carcinogenesis, Mutagenesis, Impairment of Fertility 📄 Recent Major Changes 📄 Package Label / Principal Display Panel
🎯 Indications and Usage ~2 min read ▾

1 INDICATIONS AND USAGE ZYVOX is an oxazolidinone-class antibacterial indicated in adults and children for the treatment of the following infections caused by susceptible Gram-positive bacteria: Nosocomial pneumonia ( 1.1 ); Community-acquired pneumonia ( 1.2 ); Complicated skin and skin structure infections, including diabetic foot infections, without concomitant osteomyelitis ( 1.3 ); Uncomplicated skin and skin structure infections ( 1.4 ); Vancomycin-resistant Enterococcus faecium infections. ( 1.5 ) Limitations of Use ( 1.6 ) : • ZYVOX is not indicated for the treatment of Gram-negative infections. • The safety and efficacy of ZYVOX formulations given for longer than 28 days have not been evaluated in controlled clinical trials.

To reduce the development of drug-resistant bacteria and maintain the effectiveness of ZYVOX formulations and other antibacterial drugs, ZYVOX should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria. ( 1.7 )

1.1Nosocomial Pneumonia ZYVOX is indicated for the treatment of nosocomial pneumonia caused by Staphylococcus aureus (methicillin-susceptible and -resistant isolates) or Streptococcus pneumoniae [ see Clinical Studies (14) ].

1.2Community-acquired Pneumonia ZYVOX is indicated for the treatment of community-acquired pneumonia caused by Streptococcus pneumoniae , including cases with concurrent bacteremia, or Staphylococcus aureus (methicillin-susceptible isolates only) [ see Clinical Studies (14) ].

1.3Complicated Skin and Skin Structure Infections ZYVOX is indicated for the treatment of complicated skin and skin structure infections, including diabetic foot infections, without concomitant osteomyelitis, caused by Staphylococcus aureus (methicillin-susceptible and -resistant isolates), Streptococcus pyogenes , or Streptococcus agalactiae . ZYVOX has not been studied in the treatment of decubitus ulcers [ see Clinical Studies (14) ].

1.4Uncomplicated Skin and Skin Structure Infections ZYVOX is indicated for the treatment of uncomplicated skin and skin structure infections caused by Staphylococcus aureus (methicillin-susceptible isolates only) or Streptococcus pyogenes [ see Clinical Studies (14) ].

1.5Vancomycin-resistant Enterococcus faecium Infections ZYVOX is indicated for the treatment of vancomycin-resistant Enterococcus faecium infections, including cases with concurrent bacteremia [ see Clinical Studies (14) ].

1.6Limitations of Use • ZYVOX is not indicated for the treatment of Gram-negative infections. It is critical that specific Gram-negative therapy be initiated immediately if a concomitant Gram-negative pathogen is documented or suspected [ see Warnings and Precautions (5.4) ]. • The safety and efficacy of ZYVOX formulations given for longer than 28 days have not been evaluated in controlled clinical trials [ see Clinical Studies (14) ].

1.7Usage To reduce the development of drug-resistant bacteria and maintain the effectiveness of ZYVOX and other antibacterial drugs, ZYVOX should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.

⏱️ Dosage and Administration ~3 min read ▾

2 DOSAGE AND ADMINISTRATION Dosage, Route, and Frequency of Administration Infection Pediatric Patients (Birth through 11 years of Age) Adults and Adolescents (12 years and Older) Duration (days) Nosocomial pneumonia 10 mg/kg intravenous or oral every 8 hours 600 mg intravenous or oral every 12 hours 10 to 14 Community-acquired pneumonia, including concurrent bacteremia Complicated skin and skin structure infections Vancomycin-resistant Enterococcus faecium infections , including concurrent bacteremia 10 mg/kg intravenous or oral every 8 hours 600 mg intravenous or oral every 12 hours 14 to 28 Uncomplicated skin and skin structure infections less than 5 yrs: 10 mg/kg oral every 8 hours 5–11 yrs: 10 mg/kg oral every 12 hours Adults: 400 mg oral every 12 hours Adolescents: 600 mg oral every 12 hours 10 to 14

2.1General Dosage and Administration The recommended dosage for ZYVOX formulations for the treatment of infections is described in Table 1. Table 1. Dosage Guidelines for ZYVOX Dosage, Route and Frequency of Administration Recommended Duration of Treatment (consecutive days) Infection Due to the designated pathogens [ see Indications and Usage (1) ] Pediatric Patients Neonates less than 7 days : Most pre-term neonates less than 7 days of age (gestational age less than 34 weeks) have lower systemic linezolid clearance values and larger AUC values than many full-term neonates and older infants.

These neonates should be initiated with a dosing regimen of 10 mg/kg every 12 hours. Consideration may be given to the use of 10 mg/kg every 8 hours regimen in neonates with a sub-optimal clinical response. All neonatal patients should receive 10 mg/kg every 8 hours by 7 days of life [ see Use in Specific Populations (8.4) and Clinical Pharmacology (12.3) ].

(Birth through 11 Years of Age) Adults and Adolescents (12 Years and Older) Nosocomial pneumonia 10 mg/kg intravenously or oral Oral dosing using either ZYVOX Tablets or ZYVOX for Oral Suspension [ see How Supplied/Storage and Handling (16) ]. every 8 hours 600 mg intravenously or oral every 12 hours 10 to 14 Community-acquired pneumonia, including concurrent bacteremia Complicated skin and skin structure infections Vancomycin-resistant Enterococcus faecium infections , including concurrent bacteremia 10 mg/kg intravenously or oral every 8 hours 600 mg intravenously or oral every 12 hours 14 to 28 Uncomplicated skin and skin structure infections less than 5 yrs: 10 mg/kg oral every 8 hours 5–11 yrs: 10 mg/kg oral every 12 hours Adults: 400 mg oral every 12 hours Adolescents: 600 mg oral every 12 hours 10 to 14 No dose adjustment is necessary when switching from intravenous to oral administration.

2.2Intravenous Administration ZYVOX I.V. Injection is supplied in single-dose, ready-to-use infusion bags. Parenteral drug products should be inspected visually for particulate matter prior to administration.

Check for minute leaks by firmly squeezing the bag. If leaks are detected, discard the solution, as sterility may be impaired . Keep the infusion bags in the overwrap until ready to use.

Store at room temperature. Protect from freezing. ZYVOX I.V.

Injection may exhibit a yellow color that can intensify over time without adversely affecting potency. ZYVOX I.V. Injection should be administered by intravenous infusion over a period of 30 to 120 minutes.

Do not use this intravenous infusion bag in series connections . Additives should not be introduced into this solution. If ZYVOX I.V.

Injection is to be given concomitantly with another drug, each drug should be given separately in accordance with the recommended dosage and route of administration for each product. Discard unused portion. If the same intravenous line is used for sequential infusion of several drugs, the line should be flushed before and after infusion of ZYVOX I.V.

Injection with an infusion solution compatible with ZYVOX I.V. Injection and with any other drug(s) administered via this common line.

2.3Compatibilities Com… [Excerpted — this section continues on DailyMed.]

💊 Dosage Forms and Strengths 125 words ▾

3 DOSAGE FORMS AND STRENGTHS ZYVOX I.V. Injection: 200 mg/100 mL (2 mg/mL) and 600 mg/300 mL (2 mg/mL) linezolid single-dose, ready-to-use flexible plastic infusion bags in a foil laminate overwrap. ZYVOX 600 mg Tablet: white, capsule-shaped, film-coated tablet debossed with "ZYV" on one side and "600" on the other ZYVOX for Oral Suspension: dry, white to off-white, orange-flavored granule/powder.

When constituted as directed, each bottle will contain 150 mL of a suspension providing the equivalent of 100 mg of linezolid per each 5 mL. • Injection: 200 mg/100 mL (2 mg/mL) and 600 mg/300 mL (2 mg/mL) linezolid. ( 3 ) • Tablet: 600 mg linezolid. ( 3 ) • For oral suspension: 100 mg of linezolid per each 5 mL.

( 3 )

⛔ Contraindications 95 words ▾

4 CONTRAINDICATIONS • Known hypersensitivity to linezolid or any of the other product components. ( 4.1 ) • Patients taking any monoamine oxidase inhibitors (MAOI) or within two weeks of taking an MAOI. ( 4.2 )

4.1Hypersensitivity ZYVOX formulations are contraindicated for use in patients who have known hypersensitivity to linezolid or any of the other product components .

4.2Monoamine Oxidase Inhibitors Linezolid should not be used in patients taking any medicinal product which inhibits monoamine oxidases A or B (e.g., phenelzine, isocarboxazid) or within two weeks of taking any such medicinal product.

⚠️ Warnings and Cautions ~3 min read ▾

5 WARNINGS AND PRECAUTIONS • Myelosuppression: Monitor complete blood counts weekly. Thrombocytopenia has been reported more often in patients with severe renal and in patients with moderate to severe hepatic impairment. Consider discontinuation in patients who develop or have worsening myelosuppression.

( 5.1 ) • Peripheral and Optic Neuropathy: Reported primarily in patients treated for longer than 28 days. If patients experience symptoms of visual impairment, prompt ophthalmic evaluation is recommended. ( 5.2 ) • Serotonin Syndrome: Monitor patients taking ZYVOX concomitantly with serotonergic agents for signs of serotonin syndrome.

If signs or symptoms of serotonin syndrome occur, consider discontinuing ZYVOX and/or concomitant serotonergic agents. ( 5.3 ) • A mortality imbalance was seen in an investigational study in linezolid-treated patients with catheter-related bloodstream infections. ( 5.4 ) • Clostridioides difficile- Associated Diarrhea: Evaluate if diarrhea occurs.

( 5.5 ) • Potential interactions producing elevation of blood pressure: monitor blood pressure. ( 5.6 ) • Rhabdomyolysis: If signs or symptoms of rhabdomyolysis are observed, discontinue ZYVOX and initiate appropriate therapy. ( 5.9 ) • Hypoglycemia: Postmarketing cases of symptomatic hypoglycemia have been reported in patients with diabetes mellitus receiving insulin or oral hypoglycemic agents.

( 5.10 ) • Hyponatremia and/or Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH): Monitor serum sodium levels regularly in patients at risk of hyponatremia and/or SIADH. ( 5.11 ) • Phenylketonuria: ZYVOX for Oral Suspension contains phenylalanine which can be harmful to patients with phenylketonuria. ( 5.12 )

5.1Myelosuppression Myelosuppression (including anemia, leukopenia, pancytopenia, and thrombocytopenia) has been reported in patients receiving linezolid. In cases where the outcome is known, when linezolid was discontinued, the affected hematologic parameters have risen toward pretreatment levels. Thrombocytopenia has been reported more often in patients with severe renal impairment, whether or not on dialysis, and in patients with moderate to severe hepatic impairment.

Complete blood counts should be monitored weekly in patients who receive linezolid, particularly in those who receive linezolid for longer than two weeks, those with pre-existing myelosuppression, those with severe renal impairment or moderate to severe hepatic impairment, those receiving concomitant drugs that produce bone marrow suppression, or those with a chronic infection who have received previous or concomitant antibacterial drug therapy. Discontinuation of therapy with linezolid should be considered in patients who develop or have worsening myelosuppression [ see Adverse Reactions (6.2) ].

5.2Peripheral and Optic Neuropathy Peripheral and optic neuropathies have been reported in patients treated with ZYVOX, primarily in those patients treated for longer than the maximum recommended duration of 28 days. In cases of optic neuropathy that progressed to loss of vision, patients were treated for extended periods beyond the maximum recommended duration. Visual blurring has been reported in some patients treated with ZYVOX for less than 28 days.

Peripheral and optic neuropathy has also been reported in children. If patients experience symptoms of visual impairment, such as changes in visual acuity, changes in color vision, blurred vision, or visual field defect, prompt ophthalmic evaluation is recommended. Visual function should be monitored in all patients taking ZYVOX for extended periods (≥ 3 months) and in all patients reporting new visual symptoms regardless of length of therapy with ZYVOX.

If peripheral or optic neuropathy occurs, the continued use of ZYVOX in these patients should be weighed against the potential risks.

5.3Serotonin Syndrome Spontaneous reports of serotonin syndrome including fatal cases associated with the concomitant use of ZYVOX and serotonerg… [Excerpted — this section continues on DailyMed.]

🤒 Adverse Reactions ~3 min read ▾

6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: • Myelosuppression [ see Warnings and Precautions (5.1 ) ] • Peripheral and Optic Neuropathy [ see Warnings and Precautions (5.2) ] • Serotonin Syndrome [ see Warnings and Precautions (5.3) ] • Clostridioides difficile -Associated Diarrhea [ see Warnings and Precautions (5.5) ] • Lactic Acidosis [ see Warnings and Precautions (5.7) ] • Convulsions [ see Warnings and Precautions (5.8) ] • Rhabdomyolysis [ see Warnings and Precautions (5.9) ] • Hypoglycemia [ see Warnings and Precautions (5.10) ] • Hyponatremia and/or Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH) [ see Warnings and Precautions (5.11 ) ] Most common adverse reactions (>5% of adult and/or pediatric patients treated with ZYVOX) include diarrhea, vomiting, headache, nausea, and anemia.

( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Pfizer Inc. at 1-800-438-1985 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .

6.1Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Adults The safety of ZYVOX formulations was evaluated in 2,046 adult patients enrolled in seven Phase 3 comparator-controlled clinical trials, who were treated for up to 28 days. Of the patients treated for uncomplicated skin and skin structure infections (uSSSIs), 25.4% of ZYVOX-treated and 19.6% of comparator-treated patients experienced at least one drug-related adverse event.

For all other indications, 20.4% of ZYVOX -treated and 14.3% of comparator-treated patients experienced at least one drug-related adverse event. Table 2 shows the incidence of all-causality, treatment-emergent adverse reactions reported in at least 1% of adult patients in these trials by dose of ZYVOX. Table 2.

Incidence (%) of Treatment–Emergent Adverse Reactions Occurring in >1% of Adult Patients Treated with ZYVOX in Comparator-Controlled Clinical Trials ADVERSE REACTIONS Uncomplicated Skin and Skin Structure Infections All Other Indications ZYVOX 400 mg by mouth every 12 hours (n=548) Clarithromycin 250 mg by mouth every 12 hours (n=537) ZYVOX 600 mg every 12 hours (n=1498) All Other Comparators Comparators included cefpodoxime proxetil 200 mg by mouth every 12 hours; ceftriaxone 1 g intravenously every 12 hours; dicloxacillin 500 mg by mouth every 6 hours; oxacillin 2 g intravenously every 6 hours; vancomycin 1 g intravenously every 12 hours.

(n=1464) Headache 8.8 8.4 5.7

4.4Diarrhea 8.2 6.1 8.3

6.4Nausea 5.1 4.5 6.6

4.6Vomiting 2.0 1.5 4.3

2.3Dizziness 2.6 3.0 1.8

1.5Rash 1.1 1.1 2.3

2.6Anemia 0.4 0 2.1

1.4Taste alteration 1.8 2.0 1.0

0.3Vaginal moniliasis 1.8 1.3 1.1

0.5Oral moniliasis 0.5 0 1.7

1.0Abnormal liver function tests 0.4 0.2 1.6

0.8Fungal infection 1.5 0.2 0.3

0.2Tongue discoloration 1.3 0 0.3 0 Localized abdominal pain 1.3 0.6 1.2

0.8Generalized abdominal pain 0.9 0.4 1.2

1.0Of the patients treated for uSSSIs, 3.5% of ZYVOX-treated and 2.4% of comparator-treated patients discontinued treatment due to drug-related adverse events. For all other indications, discontinuations due to drug-related adverse events occurred in 2.1% of ZYVOX-treated and 1.7% of comparator-treated patients. The most common reported drug-related adverse events leading to discontinuation of treatment were nausea, headache, diarrhea, and vomiting.

Pediatric Patients The safety of ZYVOX formulations was evaluated in 215 pediatric patients ranging in age from birth through 11 years, and in 248 pediatric patients aged 5 through 17 years (146 of these 248 were age 5 through 11 and 102 were age 12 to 17). These patients were enrolled in two Phase 3 comparator-controlled clinical trials and were treated for up to 28 days. In the study of hospitalized pediatric… [Excerpted — this section continues on DailyMed.]

🔄 Drug Interactions 77 words ▾

7 DRUG INTERACTIONS Monoamine oxidase inhibitors and potential for interaction with adrenergic and serotonergic agents. ( 4.2 , 5.3 , 5.6 , 7 , 12.3 )

7.1Monoamine Oxidase Inhibitors Linezolid is a reversible, nonselective inhibitor of monoamine oxidase [ see Contraindications (4.2) and Clinical Pharmacology (12.3) ].

7.2Adrenergic and Serotonergic Agents Linezolid has the potential for interaction with adrenergic and serotonergic agents [ see Warnings and Precautions (5.3 , 5.6) and Clinical Pharmacology (12.3) ].

👥 Use in Specific Populations ~3 min read ▾

8 USE IN SPECIFIC POPULATIONS

8.1Pregnancy Risk Summary Available data from published and postmarketing case reports with linezolid use in pregnant women have not identified a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. When administered during organogenesis, linezolid did not cause malformations in mice, rats, or rabbits at maternal exposure levels approximately 6.5 times (mice), equivalent to (rats), or 0.06 times (rabbits) the clinical therapeutic exposure, based on AUCs. However, embryo-fetal lethality was observed in mice at 6.5 times the estimated human exposure.

When female rats were dosed during organogenesis through lactation, postnatal survival of pups was decreased at doses approximately equivalent to the estimated human exposure based on AUCs (see Data ) . The background risk of major birth defects and miscarriage for the indicated populations is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes.

In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2–4% and 15–20%, respectively. Data Animal Data In mice, embryo-fetal toxicities were observed only at doses that caused maternal toxicity (clinical signs and reduced body weight gain). An oral dose of 450 mg/kg/day given from Gestation Day (GD) 6–16 (6.5 times the estimated human exposure based on AUCs) correlated with increased postimplantational embryo death, including total litter loss, decreased fetal body weights, and an increased incidence of costal cartilage fusion.

Neither maternal nor embryo-fetal toxicities were observed at doses up to 150 mg/kg/day. Fetal malformations were not observed. In rats, fetal toxicity was observed at 15 and 50 mg/kg/day administered orally from GD 6–17 (exposures 0.22 times to approximately equivalent to the estimated human exposure, respectively, based on AUCs).

The effects consisted of decreased fetal body weights and reduced ossification of sternebrae, a finding often seen in association with decreased fetal body weights. Fetal malformations were not observed. Maternal toxicity, in the form of reduced body weight gain, was seen at 50 mg/kg/day.

In rabbits, reduced fetal body weight occurred only in the presence of maternal toxicity (clinical signs, reduced body weight gain and food consumption) when administered at an oral dose of 15 mg/kg/day given from GD 6–20 (0.06 times the estimated human exposure based on AUCs). Fetal malformations were not observed. When female rats were treated with 50 mg/kg/day (approximately equivalent to the estimated human exposure based on AUCs) of linezolid during pregnancy and lactation (GD 6 through Lactation Day 20), survival of pups was decreased on postnatal days 1 to 4.

Male and female pups permitted to mature to reproductive age, when mated, showed an increase in preimplantation loss.

8.2Lactation Risk Summary Linezolid is present in breast milk. Based on data from available published case reports, the daily dose of linezolid that the infant would receive from breastmilk would be approximately 6% to 9% of the recommended therapeutic infant dose (10 mg/kg every 8 hours). There is no information on the effects of linezolid on the breastfed infant; however, diarrhea and vomiting were the most common adverse reactions reported in clinical trials in infants receiving linezolid therapeutically [ see Adverse Reactions (6.1) ] and (see Clinical Considerations ) .

There is no information on the effects of linezolid on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for linezolid and any potential adverse effects on the breastfed child from linezolid or from the underlying maternal condition. Clinical Considerations Advise lactating women to monitor a breastfed infant for diarrhea and vomiting.

8.3Females and Males of Reproductive Po… [Excerpted — this section continues on DailyMed.]

🤰 Pregnancy ~2 min read ▾

8.1Pregnancy Risk Summary Available data from published and postmarketing case reports with linezolid use in pregnant women have not identified a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. When administered during organogenesis, linezolid did not cause malformations in mice, rats, or rabbits at maternal exposure levels approximately 6.5 times (mice), equivalent to (rats), or 0.06 times (rabbits) the clinical therapeutic exposure, based on AUCs. However, embryo-fetal lethality was observed in mice at 6.5 times the estimated human exposure.

When female rats were dosed during organogenesis through lactation, postnatal survival of pups was decreased at doses approximately equivalent to the estimated human exposure based on AUCs (see Data ) . The background risk of major birth defects and miscarriage for the indicated populations is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes.

In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2–4% and 15–20%, respectively. Data Animal Data In mice, embryo-fetal toxicities were observed only at doses that caused maternal toxicity (clinical signs and reduced body weight gain). An oral dose of 450 mg/kg/day given from Gestation Day (GD) 6–16 (6.5 times the estimated human exposure based on AUCs) correlated with increased postimplantational embryo death, including total litter loss, decreased fetal body weights, and an increased incidence of costal cartilage fusion.

Neither maternal nor embryo-fetal toxicities were observed at doses up to 150 mg/kg/day. Fetal malformations were not observed. In rats, fetal toxicity was observed at 15 and 50 mg/kg/day administered orally from GD 6–17 (exposures 0.22 times to approximately equivalent to the estimated human exposure, respectively, based on AUCs).

The effects consisted of decreased fetal body weights and reduced ossification of sternebrae, a finding often seen in association with decreased fetal body weights. Fetal malformations were not observed. Maternal toxicity, in the form of reduced body weight gain, was seen at 50 mg/kg/day.

In rabbits, reduced fetal body weight occurred only in the presence of maternal toxicity (clinical signs, reduced body weight gain and food consumption) when administered at an oral dose of 15 mg/kg/day given from GD 6–20 (0.06 times the estimated human exposure based on AUCs). Fetal malformations were not observed. When female rats were treated with 50 mg/kg/day (approximately equivalent to the estimated human exposure based on AUCs) of linezolid during pregnancy and lactation (GD 6 through Lactation Day 20), survival of pups was decreased on postnatal days 1 to 4.

Male and female pups permitted to mature to reproductive age, when mated, showed an increase in preimplantation loss.

🧒 Pediatric Use ~2 min read ▾

8.4Pediatric Use The safety and effectiveness of ZYVOX for the treatment of pediatric patients with the following infections are supported by evidence from adequate and well-controlled studies in adults, pharmacokinetic data in pediatric patients, and additional data from a comparator-controlled study of Gram-positive infections in pediatric patients ranging in age from birth through 11 years [ see Indications and Usage (1) , Clinical Pharmacology (12.3) and Clinical Studies (14) ]: • nosocomial pneumonia • complicated skin and skin structure infections • community-acquired pneumonia (also supported by evidence from an uncontrolled study in patients ranging in age from 8 months through 12 years) • vancomycin-resistant Enterococcus faecium infections The safety and effectiveness of ZYVOX for the treatment of pediatric patients with the following infection have been established in a comparator-controlled study in pediatric patients ranging in age from 5 through 17 years [ see Clinical Studies (14) ]: • uncomplicated skin and skin structure infections caused by Staphylococcus aureus (methicillin-susceptible strains only) or Streptococcus pyogenes Pharmacokinetic information generated in pediatric patients with ventriculoperitoneal shunts showed variable cerebrospinal fluid (CSF) linezolid concentrations following single and multiple dosing of linezolid; therapeutic concentrations were not consistently achieved or maintained in the CSF.

Therefore, the use of linezolid for the empiric treatment of pediatric patients with central nervous system infections is not recommended. The pharmacokinetics of linezolid have been evaluated in pediatric patients from birth to 17 years of age. In general, weight-based clearance of linezolid gradually decreases with increasing age of pediatric patients.

However, in preterm (gestational age < 34 weeks) neonates < 7 days of age, linezolid clearance is often lower than in full-term neonates < 7 days of age. Consequently, preterm neonates < 7 days of age may need an alternative linezolid dosing regimen of 10 mg/kg every 12 hours [see Dosage and Administration (2.1) and Clinical Pharmacology (12.3) ]. In limited clinical experience, 5 out of 6 (83%) pediatric patients with infections due to Gram-positive pathogens with minimum inhibitory concentrations (MICs) of 4 mcg/mL treated with ZYVOX had clinical cures.

However, pediatric patients exhibit wider variability in linezolid clearance and systemic exposure (AUC) compared with adults. In pediatric patients with a sub-optimal clinical response, particularly those with pathogens with MIC of 4 mcg/mL, lower systemic exposure, site and severity of infection, and the underlying medical condition should be considered when assessing clinical response [ see Clinical Pharmacology (12.3) and Dosage and Administration (2) ].

🧓 Geriatric Use 74 words ▾

8.5Geriatric Use Of the 2,046 patients treated with ZYVOX in Phase 3 comparator-controlled clinical trials, 589 (29%) were 65 years or older and 253 (12%) were 75 years or older. No overall differences in safety or effectiveness were observed between these patients and younger patients, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out.

🆘 Overdosage 95 words ▾

10 OVERDOSAGE In the event of overdosage, supportive care is advised, with maintenance of glomerular filtration. Hemodialysis may facilitate more rapid elimination of linezolid. In a Phase 1 clinical trial, approximately 30% of a dose of linezolid was removed during a 3-hour hemodialysis session beginning 3 hours after the dose of linezolid was administered.

Data are not available for removal of linezolid with peritoneal dialysis or hemoperfusion. Clinical signs of acute toxicity in animals were decreased activity and ataxia in rats and vomiting and tremors in dogs treated with 3,000 mg/kg/day and 2,000 mg/kg/day, respectively.

🧬 Clinical Pharmacology ~3 min read ▾

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action ZYVOX is an antibacterial drug [ see Microbiology (12.4) ].

12.2Pharmacodynamics In a randomized, positive- and placebo-controlled crossover thorough QT study, 40 healthy subjects were administered a single ZYVOX 600 mg dose via a 1 hour IV infusion, a single ZYVOX 1,200 mg dose via a 1 hour IV infusion, placebo, and a single oral dose of positive control. At both the 600 mg and 1,200 mg ZYVOX doses, no significant effect on QTc interval was detected at peak plasma concentration or at any other time.

12.3Pharmacokinetics The mean pharmacokinetic parameters of linezolid in adults after single and multiple oral and intravenous doses are summarized in Table 8. Plasma concentrations of linezolid at steady-state after oral doses of 600 mg given every 12 hours are shown in Figure 1. Table 8.

Mean (Standard Deviation) Pharmacokinetic Parameters of Linezolid in Adults Dose of Linezolid C max mcg/mL C min mcg/mL T max hrs AUC AUC for single dose = AUC 0–∞ ; for multiple dose = AUC 0–τ mcg∙h/mL t 1/2 hrs CL mL/min C max = Maximum plasma concentration; C min = Minimum plasma concentration; T max = Time to C max ; AUC = Area under concentration-time curve; t 1/2 = Elimination half-life; CL = Systemic clearance 400 mg tablet single dose Data dose-normalized from 375 mg 8.10 (1.83) --- 1.52 (1.01) 55.10 (25.00) 5.20 (1.50) 146 (67) every 12 hours 11.00 (4.37) 3.08 (2.25) 1.12 (0.47) 73.40 (33.50) 4.69 (1.70) 110 (49) 600 mg tablet single dose 12.70 (3.96) --- 1.28 (0.66) 91.40 (39.30) 4.26 (1.65) 127 (48) every 12 hours 21.20 (5.78) 6.15 (2.94) 1.03 (0.62) 138.00 (42.10) 5.40 (2.06) 80 (29) 600 mg IV injection Data dose-normalized from 625 mg, intravenous dose was given as 0.5-hour infusion. single dose 12.90 (1.60) --- 0.50 (0.10) 80.20 (33.30) 4.40 (2.40) 138 (39) every 12 hours 15.10 (2.52) 3.68 (2.36) 0.51 (0.03) 89.70 (31.00) 4.80 (1.70) 123 (40) 600 mg oral suspension single dose 11.00 (2.76) --- 0.97 (0.88) 80.80 (35.10) 4.60 (1.71) 141 (45) Figure 1.

Plasma Concentrations of Linezolid in Adults at Steady-State Following Oral Dosing Every 12 Hours (Mean ± Standard Deviation, n=16) Absorption Linezolid is extensively absorbed after oral dosing. Maximum plasma concentrations are reached approximately 1 to 2 hours after dosing, and the absolute bioavailability is approximately 100%. Therefore, linezolid may be given orally or intravenously without dose adjustment.

Linezolid may be administered without regard to the timing of meals. The time to reach the maximum concentration is delayed from 1.5 hours to 2.2 hours and C max is decreased by about 17% when high fat food is given with linezolid. However, the total exposure measured as AUC 0–∞ is similar under both conditions.

Distribution Animal and human pharmacokinetic studies have demonstrated that linezolid readily distributes to well-perfused tissues. The plasma protein binding of linezolid is approximately 31% and is concentration-independent. The volume of distribution of linezolid at steady-state averaged 40 to 50 liters in healthy adult volunteers.

Linezolid concentrations have been determined in various fluids from a limited number of subjects in Phase 1 volunteer studies following multiple dosing of linezolid. The ratio of linezolid in saliva relative to plasma was 1.2 to 1 and the ratio of linezolid in sweat relative to plasma was 0.55 to 1. Metabolism Linezolid is primarily metabolized by oxidation of the morpholine ring, which results in two inactive ring-opened carboxylic acid metabolites: the aminoethoxyacetic acid metabolite (A), and the hydroxyethyl glycine metabolite (B).

Formation of metabolite A is presumed to be formed via an enzymatic pathway whereas metabolite B is mediated by a non-enzymatic chemical oxidation mechanism in vitro. In vitro studies have demonstrated that linezolid is minimally metabolized and may be mediated by human cytochrome P450. However, the metabolic pathway of linezolid is not fully understood… [Excerpted — this section continues on DailyMed.]

🧬 Mechanism of Action 14 words ▾

12.1Mechanism of Action ZYVOX is an antibacterial drug [ see Microbiology (12.4) ].

📦 How Supplied / Storage and Handling 216 words ▾

16 HOW SUPPLIED/STORAGE AND HANDLING

16.1Injection ZYVOX I.V. Injection is available in single-dose, ready-to-use flexible plastic infusion bags in a foil laminate overwrap. The infusion bags and ports are not made with natural rubber latex. The infusion bags are available in the following package sizes: 200 mg/100 mL (2 mg/mL) linezolid × 10 NDC 0009-5137-04 600 mg/300 mL (2 mg/mL) linezolid × 10 NDC 0009-5140-04

16.2Tablets ZYVOX Tablets are available as follows: 600 mg (white, capsule-shaped, film-coated tablets debossed with "ZYV" on one side and "600" on the other) 20 tablets in HDPE bottle NDC 0009-5138-02 Unit dose packages of 30 tablets NDC 0009-5138-03

16.3Oral Suspension ZYVOX for Oral Suspension is available as a dry, white to off-white, orange-flavored granule/powder. When constituted as directed, each bottle will contain 150 mL of a suspension providing the equivalent of 100 mg of linezolid per each 5 mL. ZYVOX for Oral Suspension is supplied as follows: 100 mg/5 mL in 240 mL glass bottles NDC 0009-5136-01 100 mg/5 mL in 240 mL glass bottles NDC 0009-5136-04

16.4Storage and Handling Store at 25ºC (77ºF). Protect from light. Keep bottles tightly closed to protect from moisture. It is recommended that the infusion bags be kept in the overwrap until ready to use. Protect infusion bags from freezing.

📦 Storage and Handling 40 words ▾

16.4Storage and Handling Store at 25ºC (77ºF). Protect from light. Keep bottles tightly closed to protect from moisture. It is recommended that the infusion bags be kept in the overwrap until ready to use. Protect infusion bags from freezing.

📋 Description ~1 min read ▾

11 DESCRIPTION ZYVOX I.V. Injection, ZYVOX Tablets, and ZYVOX for Oral Suspension contain linezolid, which is a synthetic antibacterial agent of the oxazolidinone class. The chemical name for linezolid is (S)-N-[[3-[3-Fluoro-4-(4-morpholinyl)phenyl]-2-oxo-5-oxazolidinyl] methyl]-acetamide.

The empirical formula is C 16 H 20 FN 3 O 4 . Its molecular weight is 337.35, and its chemical structure is represented below: ZYVOX I.V. Injection is supplied as a ready-to-use sterile isotonic solution for intravenous infusion.

Each mL contains 2 mg of linezolid. Inactive ingredients are dextrose monohydrate 50.24 mg/mL in an aqueous vehicle for intravenous administration, sodium citrate dihydrate 1.64 mg/mL, and citric acid anhydrous 0.85 mg/mL. Sodium hydroxide NF and/or hydrochloric acid NF are used to adjust the pH.

The sodium (Na + ) content is 0.38 mg/mL (5 mEq/300 mL bag and 1.7 mEq/100 mL bag). ZYVOX Tablet for oral administration contains 600 mg linezolid as a film-coated compressed tablet. Inactive ingredients are carnauba wax, corn starch, hydroxypropylcellulose, hypromellose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, sodium starch glycolate, and titanium dioxide.

The sodium (Na + ) content is 2.92 mg per 600 mg tablet (0.1 mEq/tablet). ZYVOX for Oral Suspension is supplied as an orange-flavored granule/powder for constitution into a suspension for oral administration. Following constitution, each 5 mL contains 100 mg of linezolid.

Inactive ingredients are aspartame, citric acid, colloidal silicon dioxide, flavors, mannitol, microcrystalline cellulose and carboxymethylcellulose sodium, sodium benzoate, sodium chloride, sodium citrate, sucrose, and xanthan gum [ see Patient Counseling Information (17) ]. The sodium (Na + ) content is 8.52 mg/5 mL (0.4 mEq/5 mL). Chemical Structure

💬 Information for Patients ~3 min read ▾

17 PATIENT COUNSELING INFORMATION Important Administration Instructions Advise patients that ZYVOX may be taken with or without food. Peripheral and Optic Neuropathy Advise patients to inform their physician if they experience changes in vision while taking ZYVOX [ see Warnings and Precautions (5.2) ] . Serotonin Syndrome Advise patients to inform their physician if taking serotonergic agents, including serotonin reuptake inhibitors or other antidepressants and opioids.

Advise patients of the increased risk of serotonin syndrome when ZYVOX is used concomitantly with serotonergic agents [ see Warnings and Precautions (5.3) ] . Potential Interactions Producing Elevation of Blood Pressure • Advise patients to inform their physician if they have a history of hypertension. • Advise patients to avoid large quantities of foods or beverages with high tyramine content while taking ZYVOX. Foods high in tyramine content include those that may have undergone protein changes by aging, fermentation, pickling, or smoking to improve flavor, such as aged cheeses, fermented or air-dried meats, sauerkraut, soy sauce, tap beers, and red wines.

The tyramine content of any protein-rich food may be increased if stored for long periods or improperly refrigerated. • Advise patients to inform their physician if taking medications containing pseudoephedrine HCl or phenylpropanolamine HCl, such as cold remedies and decongestants [ see Warnings and Precautions (5.6) ]. Lactic Acidosis Advise patients to inform their physician if they experience repeated episodes of nausea or vomiting while receiving ZYVOX [ see Warnings and Precautions (5.7) ]. Convulsions Advise patients to inform their physician if they have a history of seizures or convulsions [ see Warnings and Precautions (5.8) ].

Rhabdomyolysis Advise patients to inform their physician if they experience signs and symptoms of rhabdomyolysis including muscle pain, tenderness or weakness and dark urine [ see Warnings and Precautions (5.9) ]. Hypoglycemia Advise patients to inform their physician if they have diabetes mellitus. Hypoglycemic reactions, such as diaphoresis and tremulousness, along with low blood glucose measurements may occur when treated with linezolid.

If such reactions occur, patients should contact a physician or other health professional for proper treatment [ see Warnings and Precautions (5.10) ] . Hyponatremia and/or SIADH Advise patients at risk for hyponatremia to inform their physician if they experience signs and symptoms of hyponatremia and/or SIADH, including confusion, somnolence, generalized weakness, and respiratory distress [ see Warnings and Precautions (5.11) ]. Phenylketonuria Advise patients with phenylketonuria (PKU) that each 5 mL of the 100 mg/5 mL ZYVOX for Oral Suspension contains 20 mg phenylalanine.

The other ZYVOX formulations do not contain phenylalanine. Phenylalanine can be harmful to patients with phenylketonuria. Contact your physician or pharmacist when prescribed with ZYVOX for Oral Suspension [ see Warnings and Precautions (5.12) ].

Antibacterial Resistance Patients should be counseled that antibacterial drugs including ZYVOX should only be used to treat bacterial infections. They do not treat viral infections (e.g., the common cold). When ZYVOX is prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed.

Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by ZYVOX or other antibacterial drugs in the future. Diarrhea Diarrhea is a common problem caused by antibacterial drugs, which usually ends when the antibacterial drug is discontinued. Sometimes after starting treatment with antibacterial drugs, patients can develop watery and bloody stools (with or wit… [Excerpted — this section continues on DailyMed.]

🧬 Pharmacokinetics ~3 min read ▾

12.3Pharmacokinetics The mean pharmacokinetic parameters of linezolid in adults after single and multiple oral and intravenous doses are summarized in Table 8. Plasma concentrations of linezolid at steady-state after oral doses of 600 mg given every 12 hours are shown in Figure 1. Table 8.

Mean (Standard Deviation) Pharmacokinetic Parameters of Linezolid in Adults Dose of Linezolid C max mcg/mL C min mcg/mL T max hrs AUC AUC for single dose = AUC 0–∞ ; for multiple dose = AUC 0–τ mcg∙h/mL t 1/2 hrs CL mL/min C max = Maximum plasma concentration; C min = Minimum plasma concentration; T max = Time to C max ; AUC = Area under concentration-time curve; t 1/2 = Elimination half-life; CL = Systemic clearance 400 mg tablet single dose Data dose-normalized from 375 mg 8.10 (1.83) --- 1.52 (1.01) 55.10 (25.00) 5.20 (1.50) 146 (67) every 12 hours 11.00 (4.37) 3.08 (2.25) 1.12 (0.47) 73.40 (33.50) 4.69 (1.70) 110 (49) 600 mg tablet single dose 12.70 (3.96) --- 1.28 (0.66) 91.40 (39.30) 4.26 (1.65) 127 (48) every 12 hours 21.20 (5.78) 6.15 (2.94) 1.03 (0.62) 138.00 (42.10) 5.40 (2.06) 80 (29) 600 mg IV injection Data dose-normalized from 625 mg, intravenous dose was given as 0.5-hour infusion. single dose 12.90 (1.60) --- 0.50 (0.10) 80.20 (33.30) 4.40 (2.40) 138 (39) every 12 hours 15.10 (2.52) 3.68 (2.36) 0.51 (0.03) 89.70 (31.00) 4.80 (1.70) 123 (40) 600 mg oral suspension single dose 11.00 (2.76) --- 0.97 (0.88) 80.80 (35.10) 4.60 (1.71) 141 (45) Figure 1.

Plasma Concentrations of Linezolid in Adults at Steady-State Following Oral Dosing Every 12 Hours (Mean ± Standard Deviation, n=16) Absorption Linezolid is extensively absorbed after oral dosing. Maximum plasma concentrations are reached approximately 1 to 2 hours after dosing, and the absolute bioavailability is approximately 100%. Therefore, linezolid may be given orally or intravenously without dose adjustment.

Linezolid may be administered without regard to the timing of meals. The time to reach the maximum concentration is delayed from 1.5 hours to 2.2 hours and C max is decreased by about 17% when high fat food is given with linezolid. However, the total exposure measured as AUC 0–∞ is similar under both conditions.

Distribution Animal and human pharmacokinetic studies have demonstrated that linezolid readily distributes to well-perfused tissues. The plasma protein binding of linezolid is approximately 31% and is concentration-independent. The volume of distribution of linezolid at steady-state averaged 40 to 50 liters in healthy adult volunteers.

Linezolid concentrations have been determined in various fluids from a limited number of subjects in Phase 1 volunteer studies following multiple dosing of linezolid. The ratio of linezolid in saliva relative to plasma was 1.2 to 1 and the ratio of linezolid in sweat relative to plasma was 0.55 to 1. Metabolism Linezolid is primarily metabolized by oxidation of the morpholine ring, which results in two inactive ring-opened carboxylic acid metabolites: the aminoethoxyacetic acid metabolite (A), and the hydroxyethyl glycine metabolite (B).

Formation of metabolite A is presumed to be formed via an enzymatic pathway whereas metabolite B is mediated by a non-enzymatic chemical oxidation mechanism in vitro. In vitro studies have demonstrated that linezolid is minimally metabolized and may be mediated by human cytochrome P450. However, the metabolic pathway of linezolid is not fully understood.

Excretion Nonrenal clearance accounts for approximately 65% of the total clearance of linezolid. Under steady-state conditions, approximately 30% of the dose appears in the urine as linezolid, 40% as metabolite B, and 10% as metabolite A. The mean renal clearance of linezolid is 40 mL/min which suggests net tubular reabsorption.

Virtually no linezolid appears in the feces, while approximately 6% of the dose appears in the feces as metabolite B, and 3% as metabolite A. A small degree of nonlinearity in clearance was observed with increasing doses of… [Excerpted — this section continues on DailyMed.]

🧬 Pharmacodynamics 77 words ▾

12.2Pharmacodynamics In a randomized, positive- and placebo-controlled crossover thorough QT study, 40 healthy subjects were administered a single ZYVOX 600 mg dose via a 1 hour IV infusion, a single ZYVOX 1,200 mg dose via a 1 hour IV infusion, placebo, and a single oral dose of positive control. At both the 600 mg and 1,200 mg ZYVOX doses, no significant effect on QTc interval was detected at peak plasma concentration or at any other time.

🔬 Clinical Studies ~3 min read ▾

14 CLINICAL STUDIES

14.1Adults Nosocomial Pneumonia Adult patients with clinically and radiologically documented nosocomial pneumonia were enrolled in a randomized, multi-center, double-blind trial. Patients were treated for 7 to 21 days. One group received ZYVOX I.V.

Injection 600 mg every 12 hours, and the other group received vancomycin 1 g every 12 hours intravenously. Both groups received concomitant aztreonam (1 to 2 g every 8 hours intravenously), which could be continued if clinically indicated. There were 203 linezolid-treated and 193 vancomycin-treated patients enrolled in the study.

One hundred twenty-two (60%) linezolid-treated patients and 103 (53%) vancomycin-treated patients were clinically evaluable. The cure rates in clinically evaluable patients were 57% for linezolid-treated patients and 60% for vancomycin-treated patients. The cure rates in clinically evaluable patients with ventilator-associated pneumonia were 47% for linezolid-treated patients and 40% for vancomycin-treated patients.

A modified intent-to-treat (MITT) analysis of 94 linezolid-treated patients and 83 vancomycin-treated patients included subjects who had a pathogen isolated before treatment. The cure rates in the MITT analysis were 57% in linezolid-treated patients and 46% in vancomycin-treated patients. The cure rates by pathogen for microbiologically evaluable patients are presented in Table 12.

Table 12. Cure Rates at the Test-of-Cure Visit for Microbiologically Evaluable Adult Patients with Nosocomial Pneumonia Cured Pathogen ZYVOX n/N (%) Vancomycin n/N (%) Staphylococcus aureus 23/38 (61) 14/23 (61) Methicillin-resistant S. aureus 13/22 (59) 7/10 (70) Streptococcus pneumoniae 9/9 (100) 9/10 (90) Complicated Skin and Skin Structure Infections Adult patients with clinically documented complicated skin and skin structure infections were enrolled in a randomized, multi-center, double-blind, double-dummy trial comparing study medications administered intravenously followed by medications given orally for a total of 10 to 21 days of treatment.

One group of patients received ZYVOX I.V. Injection 600 mg every 12 hours followed by ZYVOX Tablets 600 mg every 12 hours; the other group received oxacillin 2 g every 6 hours intravenously followed by dicloxacillin 500 mg every 6 hours orally. Patients could receive concomitant aztreonam if clinically indicated.

There were 400 linezolid-treated and 419 oxacillin-treated patients enrolled in the study. Two hundred forty-five (61%) linezolid-treated patients and 242 (58%) oxacillin-treated patients were clinically evaluable. The cure rates in clinically evaluable patients were 90% in linezolid-treated patients and 85% in oxacillin-treated patients.

A modified intent-to-treat (MITT) analysis of 316 linezolid-treated patients and 313 oxacillin-treated patients included subjects who met all criteria for study entry. The cure rates in the MITT analysis were 86% in linezolid-treated patients and 82% in oxacillin-treated patients. The cure rates by pathogen for microbiologically evaluable patients are presented in Table 13.

Table 13. Cure Rates at the Test-of-Cure Visit for Microbiologically Evaluable Adult Patients with Complicated Skin and Skin Structure Infections Cured Pathogen ZYVOX n/N (%) Oxacillin/Dicloxacillin n/N (%) Staphylococcus aureus 73/83 (88) 72/84 (86) Methicillin-resistant S. aureus 2/3 (67) 0/0 (-) Streptococcus agalactiae 6/6 (100) 3/6 (50) Streptococcus pyogenes 18/26 (69) 21/28 (75) A separate study provided additional experience with the use of ZYVOX in the treatment of methicillin-resistant Staphylococcus aureus (MRSA) infections.

This was a randomized, open-label trial in hospitalized adult patients with documented or suspected MRSA infection. One group of patients received ZYVOX I.V. Injection 600 mg every 12 hours followed by ZYVOX Tablets 600 mg every 12 hours.

The other group of patients received vancomycin 1 g every 12 hours intravenously. Both groups were treated for 7 to 28 d… [Excerpted — this section continues on DailyMed.]

🧪 Nonclinical Toxicology ~3 min read ▾

13 NONCLINICAL TOXICOLOGY

13.1Carcinogenesis, Mutagenesis, Impairment of Fertility Lifetime studies in animals have not been conducted to evaluate the carcinogenic potential of linezolid. Neither mutagenic nor clastogenic potential was found in a battery of tests including: assays for mutagenicity (Ames bacterial reversion and CHO cell mutation), an in vitro unscheduled DNA synthesis (UDS) assay, an in vitro chromosome aberration assay in human lymphocytes, and an in vivo mouse micronucleus assay. Linezolid did not affect the fertility or reproductive performance of adult female rats given oral doses of up to 100 mg/kg/day for 14 days prior to mating through Gestation Day 7.

It reversibly decreased fertility and reproductive performance in adult male rats when given at doses ≥ 50 mg/kg/day, with exposures approximately equal to or greater than the expected human exposure level (exposure comparisons are based on AUCs). The reversible fertility effects were mediated through altered spermatogenesis. Affected spermatids contained abnormally formed and oriented mitochondria and were non-viable.

Epithelial cell hypertrophy and hyperplasia in the epididymis was observed in conjunction with decreased fertility. Similar epididymal changes were not seen in dogs. In sexually mature male rats exposed to drug as juveniles, mildly decreased fertility was observed following treatment with linezolid through most of their period of sexual development (50 mg/kg/day from days 7 to 36 of age, and 100 mg/kg/day from days 37 to 55 of age), with exposures up to 1.7 times greater than mean AUCs observed in pediatric patients aged 3 months to 11 years.

Decreased fertility was not observed with shorter treatment periods, corresponding to exposure in utero through the early neonatal period (gestation day 6 through postnatal day 5), neonatal exposure (postnatal days 5 to 21), or to juvenile exposure (postnatal days 22 to 35). Reversible reductions in sperm motility and altered sperm morphology were observed in rats treated from postnatal day 22 to 35.

13.2Animal Toxicology and/or Pharmacology Target organs of linezolid toxicity were similar in juvenile and adult rats and dogs. Dose- and time-dependent myelosuppression, as evidenced by bone marrow hypocellularity/decreased hematopoiesis, decreased extramedullary hematopoiesis in spleen and liver, and decreased levels of circulating erythrocytes, leukocytes, and platelets have been seen in animal studies. Lymphoid depletion occurred in thymus, lymph nodes, and spleen.

Generally, the lymphoid findings were associated with anorexia, weight loss, and suppression of body weight gain, which may have contributed to the observed effects. In rats administered linezolid orally for 6 months, non-reversible, minimal to mild axonal degeneration of sciatic nerves was observed at 80 mg/kg/day; minimal degeneration of the sciatic nerve was also observed in 1 male at this dose level at a 3-month interim necropsy. Sensitive morphologic evaluation of perfusion-fixed tissues was conducted to investigate evidence of optic nerve degeneration.

Minimal to moderate optic nerve degeneration was evident in 2 male rats after 6 months of dosing, but the direct relationship to drug was equivocal because of the acute nature of the finding and its asymmetrical distribution. The nerve degeneration observed was microscopically comparable to spontaneous unilateral optic nerve degeneration reported in aging rats and may be an exacerbation of common background change. These effects were observed at exposure levels that are comparable to those observed in some human subjects.

The hematopoietic and lymphoid effects were reversible, although in some studies, reversal was incomplete within the duration of the recovery period.

📄 Carcinogenesis, Mutagenesis, Impairment of Fertility ~1 min read ▾

13.1Carcinogenesis, Mutagenesis, Impairment of Fertility Lifetime studies in animals have not been conducted to evaluate the carcinogenic potential of linezolid. Neither mutagenic nor clastogenic potential was found in a battery of tests including: assays for mutagenicity (Ames bacterial reversion and CHO cell mutation), an in vitro unscheduled DNA synthesis (UDS) assay, an in vitro chromosome aberration assay in human lymphocytes, and an in vivo mouse micronucleus assay. Linezolid did not affect the fertility or reproductive performance of adult female rats given oral doses of up to 100 mg/kg/day for 14 days prior to mating through Gestation Day 7.

It reversibly decreased fertility and reproductive performance in adult male rats when given at doses ≥ 50 mg/kg/day, with exposures approximately equal to or greater than the expected human exposure level (exposure comparisons are based on AUCs). The reversible fertility effects were mediated through altered spermatogenesis. Affected spermatids contained abnormally formed and oriented mitochondria and were non-viable.

Epithelial cell hypertrophy and hyperplasia in the epididymis was observed in conjunction with decreased fertility. Similar epididymal changes were not seen in dogs. In sexually mature male rats exposed to drug as juveniles, mildly decreased fertility was observed following treatment with linezolid through most of their period of sexual development (50 mg/kg/day from days 7 to 36 of age, and 100 mg/kg/day from days 37 to 55 of age), with exposures up to 1.7 times greater than mean AUCs observed in pediatric patients aged 3 months to 11 years.

Decreased fertility was not observed with shorter treatment periods, corresponding to exposure in utero through the early neonatal period (gestation day 6 through postnatal day 5), neonatal exposure (postnatal days 5 to 21), or to juvenile exposure (postnatal days 22 to 35). Reversible reductions in sperm motility and altered sperm morphology were observed in rats treated from postnatal day 22 to 35.

📄 Recent Major Changes 9 words ▾

Warnings and Precautions, Serotonin Syndrome ( 5.3 ) 6/2026

📄 Package Label / Principal Display Panel ~3 min read ▾

PRINCIPAL DISPLAY PANEL - 100 mL Bag Label NDC 0009-5137-01 Rx only ZYVOX ® (linezolid) injection 200 mg/100 mL (2 mg/mL) Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature]. Do not freeze . Each mL contains: linezolid 2 mg dextrose, USP 50.24 mg sodium citrate, USP 1.64 mg citric acid, USP 0.85 mg water for injection, USP qs pH adjusted to 4.8 with sodium hydroxide or hydrochloric acid.

Sterile and nonpyrogenic. Single dose container. Do not add supplementary medication.

Do not use in series connections. For intravenous administration Check for leaks by squeezing container. If leaks are found, discard, as sterility may be impaired.

Check linezolid solution for clarity; it may exhibit a yellow color that intensifies over time, with no adverse effect on potency. DOSAGE AND USE: See accompanying prescribing information. DISCARD UNUSED PORTION.

The Infusion Bags and Ports are Not Made With Natural Rubber Latex . MADE IN SINGAPORE freeflex Pfizer Hospital 7 OTHER Distributed by Pharmacia & Upjohn Co. LLC A subsidiary of Pfizer Inc NY, NY 10017 1234567890 FUU 0701 01-68-26-019F LOT EXP PRINCIPAL DISPLAY PANEL - 100 mL Bag Label

PRINCIPAL DISPLAY PANEL - 100 mL Bag Overwrap Label NDC 0009-5137-01 Rx only ZYVOX ® (linezolid) injection 200 mg/100 mL (2 mg/mL) Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature]. Do not freeze. Each mL contains: linezolid 2 mg dextrose, USP 50.24 mg sodium citrate, USP 1.64 mg citric acid, USP 0.85 mg water for injection, USP qs pH adjusted to 4.8 with sodium hydroxide or hydrochloric acid.

Sterile and nonpyrogenic. Single dose container. Do not use in series connections.

For intravenous administration Check for leaks by squeezing container. If leaks are found, discard, as sterility may be impaired. Linezolid is sensitive to light.

Retain overwrap prior to use. DOSAGE AND USE: See accompanying prescribing information. DISCARD UNUSED PORTION.

The Infusion Bags and Ports are Not Made With Natural Rubber Latex. MADE IN SINGAPORE Pfizer Hospital 7 OTHER Distributed by Pharmacia & Upjohn Co. LLC A subsidiary of Pfizer Inc.

New York, NY 10017 FUU 0701 01-78-26-019G LOT EXP PRINCIPAL DISPLAY PANEL - 100 mL Bag Overwrap Label

PRINCIPAL DISPLAY PANEL - 100 mL Bag Box Label NDC 0009-5137-04 Contains 10 of NDC 0009-5137-01 QUANTITY: 1 (10 IV BAGS X 100 mL) ZYVOX ® (linezolid) injection 200 mg/100mL (2 mg/mL) RX ONLY STORE AT 25°C (77°F); EXCURSIONS PERMITTED TO 15-30°C (59-86°F) [SEE USP CONTROLLED ROOM TEMPERATURE]. DO NOT FREEZE . DISCARD UNUSED PORTION.

The Infusion Bags and Ports are Not Made With Natural Rubber Latex . Distributed by Pharmacia & Upjohn Company LLC A subsidiary of Pfizer Inc. New York, NY 10017 MADE IN SINGAPORE EXP YYYY-MM LOT 00000000 QTY: 01 04.30.034 FUU 0701 01-88-26-019L PRINCIPAL DISPLAY PANEL - 100 mL Bag Box Label

PRINCIPAL DISPLAY PANEL - 300 mL Bag Label NDC 0009-5140-01 Rx only ZYVOX ® (linezolid) injection 600 mg/300 mL (2 mg/mL) Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature]. Do not freeze . Each mL contains: linezolid 2 mg dextrose, USP 50.24 mg sodium citrate, USP 1.64 mg citric acid, USP 0.85 mg water for injection, USP qs pH adjusted to 4.8 with sodium hydroxide or hydrochloric acid.

Sterile and nonpyrogenic. Single dose container. Do not add supplementary medication.

Do not use in series connections. For intravenous administration Check for leaks by squeezing container. If leaks are found, discard, as sterility may be impaired.

Check linezolid solution for clarity; it may exhibit a yellow color that intensifies over time, with no adverse effect on potency. DOSAGE AND USE : See accompanying prescribing information. DISCARD UNUSED PORTION.

The Infusion Bags and Ports are Not Made With Natural Rubber Latex. MADE IN INDIA Pfizer Hospital 7 OTHER Distributed by Pharmacia & Upjohn Co. LLC A subsidiary of Pfizer Inc.

New York,… [Excerpted — this section continues on DailyMed.]

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗

Medicare Part D spend CMS · PART D · 2025 (Q1-Q4)

Medicare Part D (outpatient prescription) spending for Zyvox — the program that covers self-administered drugs. 2 manufacturers.
⚠️ Drug-level data: CMS publishes Part D spending by drug, not by NDC — these figures combine every manufacturer, strength and package size sold under the name Zyvox. That’s a different level of aggregation than the Medicaid card above, which is specific to this exact 11-digit NDC (pack size included), so the two aren’t directly comparable.
Total Part D spend
$17.7K
Claims incl. refills
96
Beneficiaries
36
Spend / beneficiary
$490.44
Spend / claim
$183.91
💵 About the dollar figures: spending is what Part D plans paid before confidential manufacturer rebates, so the program’s real net cost is lower. A blank patient count means fewer than 11 people — CMS hides counts that small to protect privacy. Source: CMS Medicare Quarterly Part D Spending by Drug (data.cms.gov), updated quarterly.

Reported adverse events (FAERS)

Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for Zyvox (this brand).

Top reported reactions

Thrombocytopenia2,199
Anaemia1,716
Drug Interaction1,434
Nausea1,413
Vomiting1,132
Platelet Count Decreased1,062
Diarrhoea1,053

Age at onset

Neonate58
Infant80
Child141
Adolescent110
Adult2,838
Elderly1,102

Reporter sex

0 reports
Male · 56%
Female · 43%
Unknown · 1%

Serious outcomes

Hospitalization12,212
Death5,443
Life-threatening3,242
Disabling660
Reports over time (by year) — tap or hover for the count & year
2020 2022 2024 2026 2,577 0
Most recent year is provisional (FAERS lags ~3 months).
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.

About this NDC listing & data coverage

Finished prescription product No longer marketed (per FDA listing data)
What data is (and isn’t) available for this NDC — tap to expand
NDC identity (package / product / labeler codes) ✓ Available
Labeler ✓ Available
Product & package description ✓ Available
Marketing category & status ✓ Available
Active ingredient / dosage form / route ✓ Available
FDA label (SPL via DailyMed) ✓ Available
Package photos ✓ Available
Inactive ingredients (structured) ✓ Available
NADAC pharmacy acquisition price (CMS) — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey.
Orange Book / therapeutic-equivalence data ✓ Available
HCPCS J-code billing crosswalk — Not published for this NDC Most self-administered / retail products have no J-code — that is normal.
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
What does the discontinued status mean for this NDC?
The labeler reported a marketing end date (or the listing was delisted), so this specific package is no longer actively marketed. Remaining stock may still be dispensed for a time, and the NDC stays valid for historical records and claims — but data feeds (pricing, labeling) typically stop updating for it. Other package sizes or other manufacturers' versions of the same medication may still be marketed — see the equivalents section where available.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The form printed on the packaging and shown on DailyMed is the one the FDA registered. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero and the dashes are dropped. The Identity section at the top of this page lists each form of this code.
Does this product come in other package sizes?
Yes — the FDA directory lists 1 other package presentation of this same product, including 150 ml (00009-5136-04). Each has its own NDC and its own page — see the package list near the top of this page.
Who lists this product with the FDA?
Pharmacia & Upjohn Company LLC is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as a prescription product, so it is dispensed under a prescriber's order. Your pharmacist can tell you whether any over-the-counter forms of the same medication exist.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.
← 00009-5123-01 · Pharmacia 00009-5138-02 · Pharmacia →
For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.