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Naproxen 125 mg/5mL Suspension, 500 mL — NDC 00054-3630-63 package photo
Label image from the product's FDA listing (DailyMed) — may show a different pack size or an older label revision.

Naproxen 125 mg/5mL Suspension, 500 mL — NDC 0054-3630-63 (Billing 00054-3630-63)

by Hikma Pharmaceuticals USA Inc. · 500 mL in 1 BOTTLE, PLASTIC

This is a package of 500 mL of Naproxen 125 mg/5mL Suspension from Hikma Pharmaceuticals USA Inc., marketed since Feb 2021 and currently FDA-listed; retail pharmacies pay about $0.2018 per mL (NADAC). It is this product's only package size.

NDC 00054-3630-63
🏷️ FDA NDC (as labeled) 0054-3630-63 billing pads the labeler segment with a zero
Rx only Generic On market Non-controlled ⇄ 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 →
⚠️
Other active recalls for Naproxen (different manufacturers) — 1 · tap to view
These affect other manufacturers’ products for the same ingredient — not necessarily the exact NDC on this page.
Class II · Apr 20, 2026 — Chemical contamination; presence of lead and lithium above specification (Acella Pharmaceuticals, LLC) · FDA recall D-0523-2026
Each entry is an official FDA enforcement report — look up any recall number in the FDA recall database ↗

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 0054-3630-63
Product NDC 0054-3630
11-digit billing NDC 00054363063
NCPDP billing unit ML — per mL (volume)
RxCUI 311913
UNII 57Y76R9ATQ
UPC 0300543630635
Application # ANDA074190
SPL Set ID a5757b1a-62c9-4421-9794-6fb121ce9b7e
Established class (EPC) Nonsteroidal Anti-inflammatory Drug
Mechanism of action Cyclooxygenase Inhibitors
Chemical class Anti-Inflammatory Agents, Non-Steroidal
DEA schedule Non-controlled
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2021-02-24
Route ORAL
Dosage form SUSPENSION
Substance NAPROXEN
TE code (Orange Book) AB · RLD · RS

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

GPI-14 66100060001805
GPI class Naproxen
GCN Seq No 008359
GCN 41670
HICL code 003727
Ingredient (HICL) Naproxen
HIC1 code S
Therapeutic class — broad (HIC1) Locomotor System
HIC2 code S2
Therapeutic class — intermediate (HIC2) Drugs Acting Principally On Joints
HIC3 code S2B
Therapeutic class — specific (HIC3) Nsaids, Cyclooxygenase Inhibitor Type Analgesics
AHFS code 28:08.04.04
AHFS class Reversible Cox-1/Cox-2 Inhibitors
FDB label name NAPROXEN 125 MG/5 ML SUSPEN
FDB brand name Naproxen
Legend status F — Federal legend — prescription drug or device
Quick answers
  • GSN (GCN sequence number): 008359
  • GCN: 41670
  • GPI-14 (Medi-Span): 66100060001805
  • HICL (First Databank): 003727
  • AHFS class code: 28:08.04.04
  • RxCUI (RxNorm): 311913
Why two NDCs? The FDA registers this code as 0054-3630-63 — 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 → 00054-3630-63. 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 Nonsteroidal Anti-inflammatory Drug class.

Pharmacologic class Nonsteroidal Anti-inflammatory Drug
Drug family (ATC) Propionic acid derivatives, Antiinflammatory products for vaginal administration, Antiinflammatory preparations, non-steroids for topical use
How it works Cyclooxygenase Inhibitors
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 NAPROXEN 125 MG/5 ML SUSPEN Ingredient Naproxen
📗 Our plain-language guide HelloPharmacist
  • It relieves pain, inflammation and fever. Prescription versions treat arthritis, tendonitis, bursitis, acute gout and painful periods. Over-the-counter versions handle minor aches...
  • Take it by mouth with a full glass of water. Over-the-counter products are taken every 8 to 12 hours while symptoms last, and you should use the smallest dose that works. For presc...
  • Headache, indigestion, heartburn, nausea and swelling are common. Call your doctor if you have black stools, vomit blood, a rash, yellow skin or eyes, or chest pain.
  • Usually not. Combining naproxen with other NSAIDs or aspirin raises bleeding risk with little added benefit. Naproxen can also interfere with low-dose aspirin taken for your heart,...
📖 Read our full Naproxen guide →
1
Nutrient depletion considerations

Naproxen may be associated with lower levels of 1 nutrient — worth a chat with your pharmacist, not a cause for alarm.

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 $0.202 $100.90 / 500 ml
Medicaid paysCMS SDUD · 12 mo $0.6035 $301.75 / 500 ml
Medicare drug plans payPart D · Q2 2026 $0.4321 $216.05 / 500 ml
NADAC price history (per mL) — tap or hover for the price & month
Dec 2025 Mar 2026 Jun 2026 Sep 2026 $0.226 $0.165
▼ Down 11% over the last 10 months.
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
00054-3630-63 You're viewing this Main listing 500 mL in 1 BOTTLE, PLASTIC 2021-02-24 — Active

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Naproxen 125 mg/5mL 42192-0619-16 Acella 473 ml $0.122 AB Availability likely save 40%
Naproxen 25 mg/mL 69238-1730-02 Amneal 473 ml $0.122 AB Availability likely save 40%
Naproxen 125 mg/5mLthis 00054-3630-63 Hikma 500 ml $0.202 AB Availability likely —
Naproxen 25 mg/mL 31722-0682-05 Camber 500 ml $0.202 AB Availability likely —
Naproxen Oral Suspension 125 mg/5mL 70954-0151-10 ANI 500 ml $0.202 AB Availability likely —
Naproxen 125 mg/5mL 59651-0528-47 Aurobindo 1 bottle — — FDA listed —
About this product: this is a generic version of the medicine. FDA equivalence ratings are shown when available, and other versions are listed above, least expensive first.
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

🏛️
2021
On the market since
Feb 2021
📍
2026
Currently FDA-listed
5 years listed
🔓
·
Generic on the market
this product is a generic
✅This is a generic drug

This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.

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.

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 H77VEI93A8
    A synthetic yellow dye used to color medications. It helps identify the drug and make it visually distinctive, with no effect on how the medicine works.
  • UNII 88XHZ13131
    Fumaric acid is an organic acid used in medications as a buffer and pH regulator. It helps maintain the proper acidity level in the medicine and may aid in tablet disintegration.
  • UNII 6M3P64V0NC
    A fine powder made from magnesium, aluminum, and silicon compounds. It absorbs moisture and helps keep medicine ingredients from clumping or separating, so the product stays stable and flows smoothly during manufacturing.
  • UNII A2I8C7HI9T
    Methylparaben is a preservative derived from benzoic acid that prevents growth of bacteria, fungi, and mold in medicines. It extends the product's shelf life and maintains safety during storage.
  • 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 506T60A25R
    Sorbitol is a natural sugar alcohol derived from glucose. It serves as a sweetener, humectant, and bulking agent in medications to improve taste and help maintain moisture in the product.
  • 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 059QF0KO0R
    Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.

8 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

LabelerHikma Pharmaceuticals USA Inc.
Application holderHIKMA PHARMACEUTICALS USA INC
FDA applicationANDA074190 (ANDA)
Labeler code00054
First marketedFeb 2021
Product typeHuman Prescription Drug
Portfolio726 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.
🚨 Boxed Warning ~1 min read ▾

WARNING: RISK OF SERIOUS CARDIOVASCULAR AND GASTROINTESTINAL EVENTS Cardiovascular Thrombotic Events • Nonsteroidal anti-inflammatory drugs (NSAIDs) cause an increased risk of serious cardiovascular thrombotic events, including myocardial infarction and stroke, which can be fatal. This risk may occur early in treatment and may increase with duration of use [see Warnings and Precautions ( 5.1 )] . • Naproxen oral suspension is contraindicated in the setting of coronary artery bypass graft (CABG) surgery [see Contraindications ( 4 ), Warnings and Precautions ( 5.1 )].

Gastrointestinal Bleeding, Ulceration, and Perforation • NSAIDs cause an increased risk of serious gastrointestinal (GI) adverse events including bleeding, ulceration, and perforation of the stomach or intestines, which can be fatal. These events can occur at any time during use and without warning symptoms. Elderly patients and patients with a prior history of peptic ulcer disease and/or GI bleeding are at greater risk for serious GI events [see Warnings and Precautions ( 5.2 )].

WARNING: RISK OF SERIOUS CARDIOVASCULAR AND GASTROINTESTINAL EVENTS See full prescribing information for complete boxed warning. • Nonsteroidal anti-inflammatory drugs (NSAIDs) cause an increased risk of serious cardiovascular thrombotic events, including myocardial infarction and stroke, which can be fatal. This risk may occur early in treatment and may increase with duration of use. ( 5.1 ) • Naproxen oral suspension is contraindicated in the setting of coronary artery bypass graft (CABG) surgery.

( 4 , 5.1 ) • NSAIDs cause an increased risk of serious gastrointestinal (GI) adverse events including bleeding, ulceration, and perforation of the stomach or intestines, which can be fatal. These events can occur at any time during use and without warning symptoms. Elderly patients and patients with a prior history of peptic ulcer disease and/or GI bleeding are at greater risk for serious GI events.

( 5.2 )

🎯 Indications and Usage 92 words ▾

1 INDICATIONS AND USAGE Naproxen oral suspension is indicated for: the relief of the signs and symptoms of: • rheumatoid arthritis • osteoarthritis • ankylosing spondylitis • polyarticular juvenile idiopathic arthritis • tendonitis • bursitis • acute gout the management of: • pain • primary dysmenorrhea Naproxen oral suspension is a non-steroidal anti-inflammatory drug indicated for: the relief of the signs and symptoms of: • rheumatoid arthritis • osteoarthritis • ankylosing spondylitis • polyarticular juvenile idiopathic arthritis • tendonitis • bursitis • acute gout the management of: • pain • primary dysmenorrhea

⏱️ Dosage and Administration ~3 min read ▾

2 DOSAGE AND ADMINISTRATION Use the lowest effective dose for shortest duration consistent with individual patient treatment goals. ( 2 ) Rheumatoid Arthritis, Osteoarthritis, and Ankylosing Spondylitis Naproxen Oral Suspension 250 mg (10 mL) or 375 mg (15 mL) or 500 mg (20 mL) twice daily twice daily twice daily The dose may be adjusted up or down depending on the clinical response of the patient. In patients who tolerate lower doses well, the dose may be increased to naproxen 1500 mg/day for up to 6 months.

Polyarticular Juvenile Idiopathic Arthritis Recommended total daily dose of naproxen is approximately 10 mg/kg given in 2 divided doses. The following table may be used as a guide for dosing of naproxen suspension: Patient’s Weight Dose Administered as 13 kg (29 lb) 62.5 mg twice daily 2.5 mL (1/2 tsp) twice daily 25 kg (55 lb) 125 mg twice daily 5.0 mL (1 tsp) twice daily 38 kg (84 lb) 187.5 mg twice daily 7.5 mL (1 1/2 tsp) twice daily Management of Pain, Primary Dysmenorrhea, and Acute Tendonitis and Bursitis The recommended starting dose of naproxen oral suspension is 500 mg (20 mL), followed by 250 mg (10 mL) every 6 to 8 hours as required.

Acute Gout The recommended starting dose is 750 mg (30 mL) of naproxen oral suspension followed by 250 mg (10 mL) every 8 hours until the attack has subsided.

2.1General Dosing Instructions Carefully consider the potential benefits and risks of naproxen oral suspension and other treatment options before deciding to use naproxen oral suspension. Use the lowest effective dose for the shortest duration consistent with individual patient treatment goals [see Warnings and Precautions ( 5 )] . After observing the response to initial therapy with naproxen oral suspension, the dose and frequency should be adjusted to suit an individual patient’s needs.

Always use a calibrated measuring device when administering naproxen oral suspension to ensure the dose is measured and administered accurately. A household teaspoon or tablespoon is not an adequate measuring device, especially when one-half of a teaspoonful is to be measured. Given the variability of the household spoon measure, it is strongly recommended that caregivers obtain and use a calibrated measuring device.

Health care providers should recommend an appropriate measuring device that can measure and deliver the prescribed dose accurately, and instruct caregivers to use extreme caution in measuring the dosage. Naproxen-containing products such as naproxen oral suspension, and other naproxen products should not be used concomitantly since they all circulate in the plasma as the naproxen anion.

2.2Rheumatoid Arthritis, Osteoarthritis, and Ankylosing Spondylitis The recommended dosage of naproxen oral suspension is shown in Table 1. Table 1: Recommended Dosages of Naproxen Oral Suspension Naproxen Oral Suspension 250 mg (10 mL) or 375 mg (15 mL) or 500 mg (20 mL) twice daily twice daily twice daily Naproxen oral suspension should be shaken gently before use. During long-term administration, the dose of naproxen may be adjusted up or down depending on the clinical response of the patient.

A lower daily dose may suffice for long-term administration. The morning and evening doses do not have to be equal in size and the administration of the drug more frequently than twice daily does not generally make a difference in response. In patients who tolerate lower doses well, the dose may be increased to naproxen 1500 mg/day for limited periods of up to 6 months when a higher level of anti-inflammatory/analgesic activity is required.

When treating such patients with naproxen 1500 mg/day, the physician should observe sufficient increased clinical benefits to offset the potential increased risk.

2.3Polyarticular Juvenile Idiopathic Arthritis The use of naproxen oral suspension is recommended for juvenile arthritis in children 2 years or older because it allows for more flexible dose titration based on the child’s weight. In pediatric patients, d… [Excerpted — this section continues on DailyMed.]

💊 Dosage Forms and Strengths 32 words ▾

3 DOSAGE FORMS AND STRENGTHS Naproxen Oral Suspension, USP: 125 mg/5 mL (contains 39.3 mg sodium): Available in 500 mL light-resistant bottles. Naproxen Oral Suspension: 125 mg/5 mL (contains 39.3 mg sodium)

⛔ Contraindications 137 words ▾

4 CONTRAINDICATIONS Naproxen oral suspension is contraindicated in the following patients: • Known hypersensitivity (e.g., anaphylactic reactions and serious skin reactions) to naproxen or any components of the drug product [see Warnings and Precautions ( 5.7 , 5.9 )] • History of asthma, urticaria, or other allergic-type reactions after taking aspirin or other NSAIDs. Severe, sometimes fatal, anaphylactic reactions to NSAIDs have been reported in such patients [see Warnings and Precautions ( 5.7 , 5.8 )] • In the setting of coronary artery bypass graft (CABG) surgery [see Warnings and Precautions ( 5.1 )] • Known hypersensitivity to naproxen or any components of the drug product ( 4 ) • History of asthma, urticaria, or other allergic-type reactions after taking aspirin or other NSAIDs ( 4 ) • In the setting of CABG surgery ( 4 )

⚠️ Warnings and Cautions ~3 min read ▾

5 WARNINGS AND PRECAUTIONS Hepatotoxicity: Inform patients of warning signs and symptoms of hepatotoxicity. Discontinue if abnormal liver tests persist or worsen or if clinical signs and symptoms of liver disease develop. ( 5.3 ) Hypertension: Patients taking some antihypertensive medications may have impaired response to these therapies when taking NSAIDs.

Monitor blood pressure. ( 5.4 , 7 ) Heart Failure and Edema: Avoid use of naproxen oral suspension in patients with severe heart failure unless benefits are expected to outweigh risk of worsening heart failure. ( 5.5 ) Renal Toxicity: Monitor renal function in patients with renal or hepatic impairment, heart failure, dehydration, or hypovolemia.

Avoid use of naproxen oral suspension in patients with advanced renal disease unless benefits are expected to outweigh risk of worsening renal function. ( 5.6 ) Anaphylactic Reactions: Seek emergency help if an anaphylactic reaction occurs. ( 5.7 ) Exacerbation of Asthma Related to Aspirin Sensitivity: Naproxen oral suspension is contraindicated in patients with aspirin-sensitive asthma.

Monitor patients with preexisting asthma (without aspirin sensitivity). ( 5.8 ) Serious Skin Reactions: Discontinue naproxen oral suspension at first appearance of skin rash or other signs of hypersensitivity. ( 5.9 ) Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) : Discontinue and evaluate clinically.

( 5.10 ) Fetal Toxicity : Limit use of NSAIDs, including naproxen oral suspension, between about 20 to 30 weeks in pregnancy due to the risk of oligohydramnios/fetal dysfunction. Avoid use of NSAIDs in women at about 30 weeks gestation and later in pregnancy due to the risks of oligohydramnios/fetal renal dysfunction and premature closure of the fetal ductus arteriosus. ( 5.11 , 8.1 ) Hematologic Toxicity: Monitor hemoglobin or hematocrit in patients with any signs or symptoms of anemia.

( 5.12 , 7 )

5.1Cardiovascular Thrombotic Events Clinical trials of several COX-2 selective and nonselective NSAIDs of up to three years duration have shown an increased risk of serious cardiovascular (CV) thrombotic events, including myocardial infarction (MI) and stroke, which can be fatal. Based on available data, it is unclear that the risk for CV thrombotic events is similar for all NSAIDs. The relative increase in serious CV thrombotic events over baseline conferred by NSAID use appears to be similar in those with and without known CV disease or risk factors for CV disease.

However, patients with known CV disease or risk factors had a higher absolute incidence of excess serious CV thrombotic events, due to their increased baseline rate. Some observational studies found that this increased risk of serious CV thrombotic events began as early as the first weeks of treatment. The increase in CV thrombotic risk has been observed most consistently at higher doses.

To minimize the potential risk for an adverse CV event in NSAID-treated patients, use the lowest effective dose for the shortest duration possible. Physicians and patients should remain alert for the development of such events, throughout the entire treatment course, even in the absence of previous CV symptoms. Patients should be informed about the symptoms of serious CV events and the steps to take if they occur.

There is no consistent evidence that concurrent use of aspirin mitigates the increased risk of serious CV thrombotic events associated with NSAID use. The concurrent use of aspirin and an NSAID, such as naproxen, increases the risk of serious gastrointestinal (GI) events [see Warnings and Precautions ( 5.2 )] . Status Post Coronary Artery Bypass Graft (CABG) Surgery Two large, controlled clinical trials of a COX-2 selective NSAID for the treatment of pain in the first 10–14 days following CABG surgery found an increased incidence of myocardial infarction and stroke.

NSAIDs are contraindicated in the setting of CABG [see Contraindications ( 4 )] . Post-MI Patients Observational studi… [Excerpted — this section continues on DailyMed.]

🤒 Adverse Reactions ~3 min read ▾

6 ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the labeling: • Cardiovascular Thrombotic Events [see Warnings and Precautions ( 5.1 )] • GI Bleeding, Ulceration and Perforation [see Warnings and Precautions ( 5.2 )] • Hepatotoxicity [see Warnings and Precautions ( 5.3 )] • Hypertension [see Warnings and Precautions ( 5.4 )] • Heart Failure and Edema [see Warnings and Precautions ( 5.5 )] • Renal Toxicity and Hyperkalemia [see Warnings and Precautions ( 5.6 )] • Anaphylactic Reactions [see Warnings and Precautions ( 5.7 )] • Serious Skin Reactions [see Warnings and Precautions ( 5.9 )] • Hematologic Toxicity [see Warnings and Precautions ( 5.12 )] Most common adverse reactions to naproxen were dyspepsia, abdominal pain, nausea, headache, rash, ecchymosis, and edema.

( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Hikma Pharmaceuticals USA Inc. at 1-800-962-8364 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. Adverse reactions reported in controlled clinical trials in 960 patients treated for rheumatoid arthritis or osteoarthritis are listed below. In general, reactions in patients treated chronically were reported 2 to 10 times more frequently than they were in short-term studies in the 962 patients treated for mild to moderate pain or for dysmenorrhea.

The most frequent complaints reported related to the gastrointestinal tract. A clinical study found gastrointestinal reactions to be more frequent and more severe in rheumatoid arthritis patients taking daily doses of 1500 mg naproxen compared to those taking 750 mg naproxen. In controlled clinical trials with about 80 pediatric patients and in well-monitored, open-label studies with about 400 pediatric patients with polyarticular juvenile idiopathic arthritis treated with naproxen, the incidence of rash and prolonged bleeding times were greater, the incidence of gastrointestinal and central nervous system reactions were about the same, and the incidence of other reactions were lower in pediatric patients than in adults.

In patients taking naproxen in clinical trials, the most frequently reported adverse experiences in approximately 1% to 10% of patients are: Gastrointestinal (GI) Experiences, including: heartburn*, abdominal pain*, nausea*, constipation*, diarrhea, dyspepsia, stomatitis Central Nervous System: headache*, dizziness*, drowsiness*, lightheadedness, vertigo Dermatologic: pruritus (itching)*, skin eruptions*, ecchymoses*, sweating, purpura Special Senses: tinnitus*, visual disturbances, hearing disturbances Cardiovascular: edema*, palpitations General: dyspnea*, thirst *Incidence of reported reaction between 3% and 9%.

Those reactions occurring in less than 3% of the patients are unmarked. In patients taking NSAIDs, the following adverse experiences have also been reported in approximately 1% to 10% of patients. Gastrointestinal (GI) Experiences, including: flatulence, gross bleeding/perforation, GI ulcers (gastric/duodenal), vomiting General: abnormal renal function, anemia, elevated liver enzymes, increased bleeding time, rashes

6.2Postmarketing Experience The following adverse reactions have been identified during post approval use of naproxen. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. The following are additional adverse experiences reported in <1% of patients taking naproxen during clinical trials and through postmarketing reports.

Those adverse reactions observed through postmarketing reports are italicized. Body as a Whole: anaphylactoid reaction… [Excerpted — this section continues on DailyMed.]

🔄 Drug Interactions ~3 min read ▾

7 DRUG INTERACTIONS See Table 1 for clinically significant drug interactions with naproxen. Table 1: Clinically Significant Drug Interactions with Naproxen. Drugs That Interfere with Hemostasis Clinical Impact: • Naproxen and anticoagulants such as warfarin have a synergistic effect on bleeding.

The concomitant use of naproxen and anticoagulants have an increased risk of serious bleeding compared to the use of either drug alone. • Serotonin release by platelets plays an important role in hemostasis. Case-control and cohort epidemiological studies showed that concomitant use of drugs that interfere with serotonin reuptake and an NSAID may potentiate the risk of bleeding more than an NSAID alone. Intervention: Monitor patients with concomitant use of naproxen oral suspension with anticoagulants (e.g., warfarin), antiplatelet agents (e.g., aspirin), selective serotonin reuptake inhibitors (SSRIs), and serotonin norepinephrine reuptake inhibitors (SNRIs) for signs of bleeding [see Warnings and Precautions ( 5.12 )] .

Aspirin Clinical Impact: A pharmacodynamic (PD) study has demonstrated an interaction in which lower dose naproxen (220mg/day or 220mg twice daily) interfered with the antiplatelet effect of low-dose immediate-release aspirin, with the interaction most marked during the washout period of naproxen [see Clinical Pharmacology ( 12.2 )]. There is reason to expect that the interaction would be present with prescription doses of naproxen or with enteric-coated low-dose aspirin; however, the peak interference with aspirin function may be later than observed in the PD study due to the longer washout period.

Controlled clinical studies showed that the concomitant use of NSAIDs and analgesic doses of aspirin does not produce any greater therapeutic effect than the use of NSAIDs alone. In a clinical study, the concomitant use of an NSAID and aspirin was associated with a significantly increased incidence of GI adverse reactions as compared to use of the NSAID alone [see Warnings and Precautions ( 5.2 )] . Intervention: Because there may be an increased risk of cardiovascular events following discontinuation of naproxen due to the interference with the antiplatelet effect of aspirin during the washout period, for patients taking low-dose aspirin for cardioprotection who require intermittent analgesics, consider use of an NSAID that does not interfere with the antiplatelet effect of aspirin, or non- NSAID analgesics where appropriate.

Concomitant use of naproxen oral suspension and analgesic doses of aspirin is not generally recommended because of the increased risk of bleeding [see Warnings and Precautions ( 5.12 )] . Naproxen oral suspension is not a substitute for low dose aspirin for cardiovascular protection. ACE Inhibitors, Angiotensin Receptor Blockers, and Beta-Blockers Clinical Impact: • NSAIDs may diminish the antihypertensive effect of angiotensin converting enzyme (ACE) inhibitors, angiotensin receptor blockers (ARBs), or beta-blockers (including propranolol). • In patients who are elderly, volume-depleted (including those on diuretic therapy), or have renal impairment, co-administration of an NSAID with ACE inhibitors or ARBs may result in deterioration of renal function, including possible acute renal failure.

These effects are usually reversible. Intervention: During concomitant use of naproxen oral suspension and ACE-inhibitors, ARBs, or beta-blockers, monitor blood pressure to ensure that the desired blood pressure is obtained. • During concomitant use of naproxen oral suspension and ACE-inhibitors or ARBs in patients who are elderly, volume-depleted, or have impaired renal function, monitor for signs of worsening renal function [see Warnings and Precautions ( 5.6 )] . • When these drugs are administered concomitantly, patients should be adequately hydrated.

Assess renal function at the beginning of the concomitant treatment and periodically thereafter. Diuretics Clinical Impact: Clinical studies, as well as post-… [Excerpted — this section continues on DailyMed.]

👥 Use in Specific Populations ~3 min read ▾

8 USE IN SPECIFIC POPULATIONS Infertility: NSAIDs are associated with reversible infertility. Consider withdrawal of naproxen oral suspension in women who have difficulties conceiving. ( 8.3 ) Renal Impairment: Naproxen-containing products are not recommended for use in patients with moderate to severe and severe renal impairment (creatinine clearance <30 mL/min). ( 8.7 )

8.1Pregnancy Risk Summary Use of NSAIDs, including naproxen oral suspension, can cause premature closure of the fetal ductus arteriosus and fetal renal dysfunction leading to oligohydramnios and, in some cases, neonatal renal impairment. Because of these risks, limit dose and duration of naproxen oral suspension use between about 20 and 30 weeks of gestation, and avoid naproxen oral suspension use at about 30 weeks of gestation and later in pregnancy (see Clinical Considerations, Data). Premature Closure of Fetal Ductus Arteriosus Use of NSAIDs, including naproxen oral suspension, at about 30 weeks gestation or later in pregnancy increases the risk of premature closure of the fetal ductus arteriosus.

Oligohydramnios/Neonatal Renal Impairment Use of NSAIDs at about 20 weeks gestation or later in pregnancy has been associated with cases of fetal renal dysfunction leading to oligohydramnios, and in some cases, neonatal renal impairment. Data from observational studies regarding other potential embryofetal risks of NSAID use in women in the first or second trimesters of pregnancy are inconclusive. In animal reproduction studies in rats, rabbits, and mice no evidence of teratogenicity or fetal harm when naproxen was administered during the period of organogenesis at doses 0.13, 0.26, and 0.6 times the maximum recommended human daily dose of 1500 mg/day, respectively.

Based on animal data, prostaglandins have been shown to have an important role in endometrial vascular permeability, blastocyst implantation, and decidualization. In animal studies, administration of prostaglandin synthesis inhibitors such as naproxen, resulted in increased pre- and post-implantation loss. Prostaglandins also have been shown to have an important role in fetal kidney development.

In published animal studies, prostaglandin synthesis inhibitors have been reported to impair kidney development when administered at clinically relevant doses. The estimated background risk of major birth defects and miscarriage for the indicated population(s) 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% to 4% and 15% to 20%, respectively. Clinical Considerations Fetal/Neonatal Adverse Reactions Premature Closure of Fetal Ductus Arteriosus : Avoid use of NSAIDs in women at about 30 weeks gestation and later in pregnancy, because NSAIDs, including naproxen oral suspension, can cause premature closure of the fetal ductus arteriosus (see Data). Oligohydramnios/Neonatal Renal Impairment : If an NSAID is necessary at about 20 weeks gestation or later in pregnancy, limit the use to the lowest effective dose and shortest duration possible.

If naproxen oral suspension treatment extends beyond 48 hours, consider monitoring with ultrasound for oligohydramnios. If oligohydramnios occurs, discontinue naproxen oral suspension, and follow up according to clinical practice (see Data). Labor or Delivery There are no studies on the effects of naproxen oral suspension during labor or delivery.

In animal studies, NSAIDS, including naproxen, inhibit prostaglandin synthesis, cause delayed parturition, and increase the incidence of stillbirth. Data Human Data There is some evidence to suggest that when inhibitors of prostaglandin synthesis are used to delay preterm labor there is an increased risk of neonatal complications such as necrotizing enterocolitis, patent ductus arteriosus and intracranial hemorrhage. Naproxen treatment given… [Excerpted — this section continues on DailyMed.]

🤰 Pregnancy ~3 min read ▾

8.1Pregnancy Risk Summary Use of NSAIDs, including naproxen oral suspension, can cause premature closure of the fetal ductus arteriosus and fetal renal dysfunction leading to oligohydramnios and, in some cases, neonatal renal impairment. Because of these risks, limit dose and duration of naproxen oral suspension use between about 20 and 30 weeks of gestation, and avoid naproxen oral suspension use at about 30 weeks of gestation and later in pregnancy (see Clinical Considerations, Data). Premature Closure of Fetal Ductus Arteriosus Use of NSAIDs, including naproxen oral suspension, at about 30 weeks gestation or later in pregnancy increases the risk of premature closure of the fetal ductus arteriosus.

Oligohydramnios/Neonatal Renal Impairment Use of NSAIDs at about 20 weeks gestation or later in pregnancy has been associated with cases of fetal renal dysfunction leading to oligohydramnios, and in some cases, neonatal renal impairment. Data from observational studies regarding other potential embryofetal risks of NSAID use in women in the first or second trimesters of pregnancy are inconclusive. In animal reproduction studies in rats, rabbits, and mice no evidence of teratogenicity or fetal harm when naproxen was administered during the period of organogenesis at doses 0.13, 0.26, and 0.6 times the maximum recommended human daily dose of 1500 mg/day, respectively.

Based on animal data, prostaglandins have been shown to have an important role in endometrial vascular permeability, blastocyst implantation, and decidualization. In animal studies, administration of prostaglandin synthesis inhibitors such as naproxen, resulted in increased pre- and post-implantation loss. Prostaglandins also have been shown to have an important role in fetal kidney development.

In published animal studies, prostaglandin synthesis inhibitors have been reported to impair kidney development when administered at clinically relevant doses. The estimated background risk of major birth defects and miscarriage for the indicated population(s) 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% to 4% and 15% to 20%, respectively. Clinical Considerations Fetal/Neonatal Adverse Reactions Premature Closure of Fetal Ductus Arteriosus : Avoid use of NSAIDs in women at about 30 weeks gestation and later in pregnancy, because NSAIDs, including naproxen oral suspension, can cause premature closure of the fetal ductus arteriosus (see Data). Oligohydramnios/Neonatal Renal Impairment : If an NSAID is necessary at about 20 weeks gestation or later in pregnancy, limit the use to the lowest effective dose and shortest duration possible.

If naproxen oral suspension treatment extends beyond 48 hours, consider monitoring with ultrasound for oligohydramnios. If oligohydramnios occurs, discontinue naproxen oral suspension, and follow up according to clinical practice (see Data). Labor or Delivery There are no studies on the effects of naproxen oral suspension during labor or delivery.

In animal studies, NSAIDS, including naproxen, inhibit prostaglandin synthesis, cause delayed parturition, and increase the incidence of stillbirth. Data Human Data There is some evidence to suggest that when inhibitors of prostaglandin synthesis are used to delay preterm labor there is an increased risk of neonatal complications such as necrotizing enterocolitis, patent ductus arteriosus and intracranial hemorrhage. Naproxen treatment given in late pregnancy to delay parturition has been associated with persistent pulmonary hypertension, renal dysfunction and abnormal prostaglandin E levels in preterm infants.

Because of the known effects of nonsteroidal anti-inflammatory drugs on the fetal cardiovascular system (closure of ductus arteriosus), use during pregnancy (particularly starting at 30 weeks of gestat… [Excerpted — this section continues on DailyMed.]

🧒 Pediatric Use 88 words ▾

8.4Pediatric Use Safety and effectiveness in pediatric patients below the age of 2 years have not been established. Pediatric dosing recommendations for polyarticular juvenile idiopathic arthritis are based on well-controlled studies. There are no adequate effectiveness or dose-response data for other pediatric conditions, but the experience in polyarticular juvenile idiopathic arthritis and other use experience have established that single doses of 2.5 to 5 mg/kg (as naproxen suspension), with total daily dose not exceeding 15 mg/kg/day, are well tolerated in pediatric patients over 2 years of age.

🧓 Geriatric Use ~2 min read ▾

8.5Geriatric Use The hepatic and renal tolerability of long-term naproxen administration was studied in two double-blind clinical trials involving 586 patients. Of the patients studied, 98 patients were age 65 and older and 10 of the 98 patients were age 75 and older. Naproxen was administered at doses of 375 mg twice daily or 750 mg twice daily for up to 6 months.

Transient abnormalities of laboratory tests assessing hepatic and renal function were noted in some patients, although there were no differences noted in the occurrence of abnormal values among different age groups. Elderly patients, compared to younger patients, are at greater risk for NSAID-associated serious cardiovascular, gastrointestinal, and/or renal adverse reactions. If the anticipated benefit for the elderly patient outweighs these potential risks, start dosing at the low end of the dosing range, and monitor patients for adverse effects [see Warnings and Precautions ( 5.1 , 5.2 , 5.3 , 5.6 , 5.14 )] .

Studies indicate that although total plasma concentration of naproxen is unchanged, the unbound plasma fraction of naproxen is increased in the elderly. The clinical significance of this finding is unclear, although it is possible that the increase in free naproxen concentration could be associated with an increase in the rate of adverse events per a given dosage in some elderly patients. Caution is advised when high doses are required and some adjustment of dosage may be required in elderly patients.

As with other drugs used in the elderly, it is prudent to use the lowest effective dose. Experience indicates that geriatric patients may be particularly sensitive to certain adverse effects of nonsteroidal anti-inflammatory drugs. Elderly or debilitated patients seem to tolerate peptic ulceration or bleeding less well when these events do occur.

Most spontaneous reports of fatal GI events are in the geriatric population [see Warnings and Precautions ( 5.6 )] . Naproxen is known to be substantially excreted by the kidney, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and it may be useful to monitor renal function.

Geriatric patients may be at a greater risk for the development of a form of renal toxicity precipitated by reduced prostaglandin formation during administration of nonsteroidal anti-inflammatory drugs [see Warnings and Precautions ( 5.6 )] .

🆘 Overdosage 201 words ▾

10 OVERDOSAGE Symptoms following acute NSAID overdosages have been typically limited to lethargy, drowsiness, nausea, vomiting, and epigastric pain, which have been generally reversible with supportive care. Gastrointestinal bleeding has occurred. Hypertension, acute renal failure, respiratory depression, and coma have occurred, but were rare.

A few patients have experienced convulsions, but it is not clear whether or not these were drug-related. It is not known what dose of the drug would be life threatening [see Warnings and Precautions ( 5.1 , 5.2 )] . Manage patients with symptomatic and supportive care following an NSAID overdosage.

There are no specific antidotes. There are no specific antidotes. Hemodialysis does not decrease the plasma concentration of naproxen because of the high degree of its protein binding.

Consider emesis and/or activated charcoal (60 to 100 grams in adults, 1 to 2 grams per kg of body weight in pediatric patients) and/or osmotic cathartic in symptomatic patients seen within four hours of ingestion or in patients with a large overdosage (5 to 10 times the recommended dosage). Forced diuresis, alkalinization of urine, hemodialysis, or hemoperfusion may not be useful due to high protein binding. For additional information about overdosage treatment contact a poison control center (1-800-222-1222).

🧬 Clinical Pharmacology ~3 min read ▾

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Naproxen has analgesic, anti-inflammatory, and antipyretic properties. The mechanism of action of naproxen, like that of other NSAIDs, is not completely understood but involves inhibition of cyclooxygenase (COX-1 and COX-2). Naproxen is a potent inhibitor of prostaglandin synthesis in vitro.

Naproxen concentrations reached during therapy have produced in vivo effects. Prostaglandins sensitize afferent nerves and potentiate the action of bradykinin in inducing pain in animal models. Prostaglandins are mediators of inflammation.

Because naproxen is an inhibitor of prostaglandin synthesis, its mode of action may be due to a decrease of prostaglandins in peripheral tissues.

12.2Pharmacodynamics In a healthy volunteer study, 10 days of concomitant administration of naproxen 220 mg once-daily with low-dose immediate-release aspirin (81 mg) showed an interaction with the antiplatelet activity of aspirin as measured by % serum thromboxane B2 inhibition at 24 hours following the day 10 dose [98.7% (aspirin alone) vs 93.1% (naproxen and aspirin)]. The interaction was observed even following discontinuation of naproxen on day 11 (while aspirin dose was continued) but normalized by day 13. In the same study, the interaction was greater when naproxen was administered 30 minutes prior to aspirin [98.7% vs 87.7%] and minimal when aspirin was administered 30 minutes prior to naproxen [98.7% vs 95.4%].

Following administration of naproxen 220 mg twice-daily with low-dose immediate release aspirin (first naproxen dose given 30 minutes prior to aspirin), the interaction was minimal at 24 h following day 10 dose [98.7% vs 95.7%]. However, the interaction was more prominent after discontinuation of naproxen (washout) on day 11 [98.7% vs 84.3%] and did not normalize completely by day 13 [98.5% vs 90.7%] [see Drug Interactions ( 7 )] .

12.3Pharmacokinetics Naproxen is rapidly and completely absorbed from the gastrointestinal tract with an in vivo bioavailability of 95%. The elimination half-life of naproxen ranges from 12 to 17 hours. Steady-state levels of naproxen are reached in 4 to 5 days, and the degree of naproxen accumulation is consistent with this half-life.

Absorption Peak plasma levels of naproxen given as naproxen oral suspension are attained in 1 to 4 hours. When naproxen oral suspension and immediate release naproxen tablets were given to fasted subjects (n=12) in a single-dose, crossover study, there were comparable pharmacokinetic parameters between the two formulations. Naproxen Oral Suspension Naproxen Tablets 500 mg C max (µg/mL) T max (hours) T 1/2 (hours) AUC 0–t (µg·hr/mL) 64.3 2.6 16.8 1249 71.1 2.3 16.3 1218 Distribution Naproxen has a volume of distribution of

0.16L/kg. At therapeutic levels naproxen is greater than 99% albumin-bound. At doses of naproxen greater than 500 mg/day there is less than proportional increase in plasma levels due to an increase in clearance caused by saturation of plasma protein binding at higher doses (average trough C ss 36.5, 49.2 and 56.4 mg/L with 500, 1000 and 1500 mg daily doses of naproxen, respectively).

The naproxen anion has been found in the milk of lactating women at a concentration equivalent to approximately 1% of maximum naproxen concentration in plasma [see Use in Specific Populations ( 8.2 )] . Elimination Metabolism Naproxen is extensively metabolized in the liver to 6-0-desmethyl naproxen, and both parent and metabolites do not induce metabolizing enzymes. Both naproxen and 6-0-desmethyl naproxen are further metabolized to their respective acylglucuronide conjugated metabolites.

Excretion The clearance of naproxen is 0.13 mL/min/kg. Approximately 95% of the naproxen from any dose is excreted in the urine, primarily as naproxen (<1%), 6-0-desmethyl naproxen (<1%) or their conjugates (66% to 92%). The plasma half-life of the naproxen anion in humans ranges from 12 to 17 hours.

The corresponding half-lives of both naproxen’s meta… [Excerpted — this section continues on DailyMed.]

🧬 Mechanism of Action 98 words ▾

12.1Mechanism of Action Naproxen has analgesic, anti-inflammatory, and antipyretic properties. The mechanism of action of naproxen, like that of other NSAIDs, is not completely understood but involves inhibition of cyclooxygenase (COX-1 and COX-2). Naproxen is a potent inhibitor of prostaglandin synthesis in vitro.

Naproxen concentrations reached during therapy have produced in vivo effects. Prostaglandins sensitize afferent nerves and potentiate the action of bradykinin in inducing pain in animal models. Prostaglandins are mediators of inflammation.

Because naproxen is an inhibitor of prostaglandin synthesis, its mode of action may be due to a decrease of prostaglandins in peripheral tissues.

📦 How Supplied / Storage and Handling 80 words ▾

16 HOW SUPPLIED/STORAGE AND HANDLING Naproxen Oral Suspension, USP The 125 mg per 5 mL oral suspension is supplied as a (pineapple-orange-flavored) light orange suspension which readily resuspends on shaking. Sodium content: 39.3 mg/5 mL, 1.71 mEq/5 mL. NDC 0054-3630-63: Bottle of 500 mL Store at 20° to 25°C (68° to 77°F). [See USP Controlled Room Temperature.] Avoid excessive heat above 40°C (104°F).

Dispense in a tight, light-resistant, child-resistant container as defined in the USP/NF. SHAKE GENTLY BEFORE USING .

📋 Description 155 words ▾

11 DESCRIPTION Naproxen Oral Suspension, USP is available as a light orange suspension which readily resuspends on shaking containing 125 mg/5 mL of naproxen, USP for oral administration. Naproxen is a propionic acid derivative related to the arylacetic acid group of nonsteroidal anti-inflammatory drugs. The chemical name is ( S )-2-(6-Methoxy-naphth-2-yl) propionic acid (2S)-2-(6-Methoxynaphthalen-2-yl)propanoic acid.

The molecular weight is 230.26. Its molecular formula is C 14 H 14 O 3 , and it has the following chemical structure. Naproxen, USP is a white to off-white crystalline powder.

It is practically insoluble in water and soluble in alcohol and in methanol. Naproxen Oral Suspension, USP for oral administration contains the following inactive ingredients: FD&C Yellow No. 6, fumaric acid, magnesium aluminum silicate, methylparaben, orange flavor, pineapple flavor, purified water, sodium chloride, sorbitol solution, and sucrose.

It has a sodium content of 39.3 mg/5 mL, 1.71 mEq/5 mL, with a pH range of 2.2 to 3.7. naproxen-chem.jpg

💬 Information for Patients ~3 min read ▾

17 PATIENT COUNSELING INFORMATION Advise the patient and caregiver to read the FDA-approved patient labeling ( Medication Guide ) that accompanies each prescription dispensed. Inform patients, families, or their caregivers should be informed of the following information before initiating therapy with naproxen oral suspension and periodically during the course of ongoing therapy. Cardiovascular Thrombotic Events Advise patients to be alert for the symptoms of cardiovascular thrombotic events, including chest pain, shortness of breath, weakness, or slurring of speech, and to report any of these symptoms to their health care provider immediately [see Warnings and Precautions ( 5.1 )].

Gastrointestinal Bleeding, Ulceration, and Perforation Advise patients to report symptoms of ulcerations and bleeding, including epigastric pain, dyspepsia, melena, and hematemesis to their health care provider. In the setting of concomitant use of low-dose aspirin for cardiac prophylaxis, inform patients of the increased risk for and the signs and symptoms of GI bleeding [see Warnings and Precautions ( 5.2 )]. Hepatotoxicity Inform patients of the warning signs and symptoms of hepatotoxicity (e.g., nausea, fatigue, lethargy, pruritus, diarrhea, jaundice, right upper quadrant tenderness, and “flu-like” symptoms).

If these occur, instruct patients to stop naproxen oral suspension and seek immediate medical therapy [see Warnings and Precautions ( 5.3 )] . Heart Failure and Edema Advise patients to be alert for the symptoms of congestive heart failure including shortness of breath, unexplained weight gain, or edema and to contact their healthcare provider if such symptoms occur [see Warnings and Precautions ( 5.5 )] . Anaphylactic Reactions Inform patients of the signs of an anaphylactic reaction (e.g., difficulty breathing, swelling of the face or throat).

Instruct patients to seek immediate emergency help if these occur [see Contraindications ( 4 ) and Warnings and Precautions ( 5.7 )] . Serious Skin Reactions, including DRESS Advise patients to stop taking naproxen oral suspension immediately if they develop any type of rash or fever and to contact their healthcare provider as soon as possible [see Warnings and Precautions ( 5.9 , 5.10 )]. Female Fertility Advise females of reproductive potential who desire pregnancy that NSAIDs, including naproxen oral suspension, may be associated with a reversible delay in ovulation [see Use in Specific Populations ( 8.3 )].

Fetal Toxicity Inform pregnant women to avoid use of naproxen oral suspension and other NSAIDs starting at 30 weeks gestation because of the risk of the premature closing of the fetal ductus arteriosus. If treatment with naproxen oral suspension is needed for a pregnant woman between about 20 to 30 weeks gestation, advise her that she may need to be monitored for oligohydramnios, if treatment continues for longer than 48 hours [see Warnings and Precautions ( 5.11 ) and Use in Specific Populations ( 8.1 )]. Avoid Concomitant Use of NSAIDs Inform patients that the concomitant use of naproxen oral suspension with other NSAIDs or salicylates (e.g., diflunisal, salsalate) is not recommended due to the increased risk of gastrointestinal toxicity, and little or no increase in efficacy [see Warnings and Precautions ( 5.2 ) and Drug Interactions ( 7 )] .

Alert patients that NSAIDs may be present in “over the counter” medications for treatment of colds, fever, or insomnia. Use of NSAIDS and Low-Dose Aspirin Inform patients not to use low-dose aspirin concomitantly with naproxen oral suspension until they talk to their healthcare provider [see Drug Interactions ( 7 )]. Dosing Instructions Instruct patients on how to measure and take the correct dose of naproxen oral suspension and to always use a calibrated measuring device when administering naproxen oral suspension to ensure the dose is measured and administered accurately [see Dosage and Administration ( 2.1 )] .

If the prescribed concentration is ch… [Excerpted — this section continues on DailyMed.]

💬 Medication Guide ~3 min read ▾

Medication Guide for Nonsteroidal Anti-inflammatory Drugs (NSAIDs) What is the most important information I should know about medicines called Nonsteroidal Anti-inflammatory Drugs (NSAIDs)? NSAIDs can cause serious side effects, including: • Increased risk of a heart attack or stroke that can lead to death. This risk may happen early in treatment and may increase: o with increasing doses of NSAIDs o with longer use of NSAIDs Do not take NSAIDs right before or after a heart surgery called a “coronary artery bypass graft (CABG).” Avoid taking NSAIDs after a recent heart attack, unless your healthcare provider tells you to.

You may have an increased risk of another heart attack if you take NSAIDs after a recent heart attack. • Increased risk of bleeding, ulcers, and tears (perforation) of the esophagus (tube leading from the mouth to the stomach), stomach and intestines: o anytime during use o without warning symptoms o that may cause death The risk of getting an ulcer or bleeding increases with: o past history of stomach ulcers, or stomach or intestinal bleeding with use of NSAIDs o taking medicines called “corticosteroids”, “anticoagulants”, “SSRIs”, or “SNRIs” o increasing doses of NSAIDs o longer use of NSAIDs o smoking o drinking alcohol o older age o poor health o advanced liver disease o bleeding problems NSAIDs should only be used: o exactly as prescribed o at the lowest dose possible for your treatment o for the shortest time needed What are NSAIDs?

NSAIDs are used to treat pain and redness, swelling, and heat (inflammation) from medical conditions such as different types of arthritis, menstrual cramps, and other types of short-term pain. Who should not take NSAIDs? Do not take NSAIDs: • if you have had an asthma attack, hives, or other allergic reaction with aspirin or any other NSAIDs. • right before or after heart bypass surgery.

How should I take naproxen oral suspension? Use ONLY a calibrated measuring device to measure your dose of naproxen oral suspension. DO NOT use a household teaspoon or tablespoon.

Your pharmacist can provide you with the proper device to correctly measure your dose. Before taking NSAIDS, tell your healthcare provider about all of your medical conditions, including if you: • have liver or kidney problems • have high blood pressure • have asthma • are pregnant or plan to become pregnant. Taking NSAIDs at about 20 weeks of pregnancy or later may harm your unborn baby.

If you need to take NSAIDs for more than 2 days when you are between 20 and 30 weeks of pregnancy, your healthcare provider may need to monitor the amount of fluid in your womb around your baby. You should not take NSAIDs after about 30 weeks of pregnancy. • are breastfeeding or plan to breast feed. Tell your healthcare provider about all of the medicines you take, including prescription or over-the-counter medicines, vitamins or herbal supplements.

NSAIDs and some other medicines can interact with each other and cause serious side effects. Do not start taking any new medicine without talking to your healthcare provider first. What are the possible side effects of NSAIDs?

NSAIDs can cause serious side effects, including: See “What is the most important information I should know about medicines called Nonsteroidal Anti-inflammatory Drugs (NSAIDs)? • new or worse high blood pressure • heart failure • liver problems including liver failure • kidney problems including kidney failure • low red blood cells (anemia) • life-threatening skin reactions • life-threatening allergic reactions • Other side effects of NSAIDs include: stomach pain, constipation, diarrhea, gas, heartburn, nausea, vomiting, and dizziness.

Get emergency help right away if you get any of the following symptoms: • shortness of breath or trouble breathing • chest pain • weakness in one part or side of your body • slurred speech • swelling of the face or throat Stop taking your NSAID and call your healthcare provider right away if you get any of the following symptoms: •… [Excerpted — this section continues on DailyMed.]

🧬 Pharmacokinetics ~3 min read ▾

12.3Pharmacokinetics Naproxen is rapidly and completely absorbed from the gastrointestinal tract with an in vivo bioavailability of 95%. The elimination half-life of naproxen ranges from 12 to 17 hours. Steady-state levels of naproxen are reached in 4 to 5 days, and the degree of naproxen accumulation is consistent with this half-life.

Absorption Peak plasma levels of naproxen given as naproxen oral suspension are attained in 1 to 4 hours. When naproxen oral suspension and immediate release naproxen tablets were given to fasted subjects (n=12) in a single-dose, crossover study, there were comparable pharmacokinetic parameters between the two formulations. Naproxen Oral Suspension Naproxen Tablets 500 mg C max (µg/mL) T max (hours) T 1/2 (hours) AUC 0–t (µg·hr/mL) 64.3 2.6 16.8 1249 71.1 2.3 16.3 1218 Distribution Naproxen has a volume of distribution of

0.16L/kg. At therapeutic levels naproxen is greater than 99% albumin-bound. At doses of naproxen greater than 500 mg/day there is less than proportional increase in plasma levels due to an increase in clearance caused by saturation of plasma protein binding at higher doses (average trough C ss 36.5, 49.2 and 56.4 mg/L with 500, 1000 and 1500 mg daily doses of naproxen, respectively).

The naproxen anion has been found in the milk of lactating women at a concentration equivalent to approximately 1% of maximum naproxen concentration in plasma [see Use in Specific Populations ( 8.2 )] . Elimination Metabolism Naproxen is extensively metabolized in the liver to 6-0-desmethyl naproxen, and both parent and metabolites do not induce metabolizing enzymes. Both naproxen and 6-0-desmethyl naproxen are further metabolized to their respective acylglucuronide conjugated metabolites.

Excretion The clearance of naproxen is 0.13 mL/min/kg. Approximately 95% of the naproxen from any dose is excreted in the urine, primarily as naproxen (<1%), 6-0-desmethyl naproxen (<1%) or their conjugates (66% to 92%). The plasma half-life of the naproxen anion in humans ranges from 12 to 17 hours.

The corresponding half-lives of both naproxen’s metabolites and conjugates are shorter than 12 hours, and their rates of excretion have been found to coincide closely with the rate of naproxen clearance from the plasma. Small amounts, 3% or less of the administered dose, are excreted in the feces. In patients with renal failure metabolites may accumulate [see Warnings and Precautions ( 5.6 )] .

Specific Populations Pediatric In pediatric patients aged 5 to 16 years with arthritis, plasma naproxen levels following a 5 mg/kg single dose of naproxen suspension [see Dosage and Administration ( 2 )] were found to be similar to those found in normal adults following a 500 mg dose. The terminal half-life appears to be similar in pediatric and adult patients. Pharmacokinetic studies of naproxen were not performed in pediatric patients younger than 5 years of age.

Pharmacokinetic parameters appear to be similar following administration of naproxen oral suspension or tablets in pediatric patients. Geriatric Studies indicate that although total plasma concentration of naproxen is unchanged, the unbound plasma fraction of naproxen is increased in the elderly, although the unbound fraction is <1% of the total naproxen concentration. Unbound trough naproxen concentrations in elderly subjects have been reported to range from 0.12% to 0.19% of total naproxen concentration, compared with 0.05% to 0.075% in younger subjects.

Hepatic Impairment Naproxen pharmacokinetics has not been determined in subjects with hepatic insufficiency. Chronic alcoholic liver disease and probably other diseases with decreased or abnormal plasma proteins (albumin) reduce the total plasma concentration of naproxen, but the plasma concentration of unbound naproxen is increased. Renal Impairment Naproxen pharmacokinetics has not been determined in subjects with renal insufficiency.

Given that naproxen, its metabolites and conjugates are primarily excreted b… [Excerpted — this section continues on DailyMed.]

🧬 Pharmacodynamics 182 words ▾

12.2Pharmacodynamics In a healthy volunteer study, 10 days of concomitant administration of naproxen 220 mg once-daily with low-dose immediate-release aspirin (81 mg) showed an interaction with the antiplatelet activity of aspirin as measured by % serum thromboxane B2 inhibition at 24 hours following the day 10 dose [98.7% (aspirin alone) vs 93.1% (naproxen and aspirin)]. The interaction was observed even following discontinuation of naproxen on day 11 (while aspirin dose was continued) but normalized by day 13. In the same study, the interaction was greater when naproxen was administered 30 minutes prior to aspirin [98.7% vs 87.7%] and minimal when aspirin was administered 30 minutes prior to naproxen [98.7% vs 95.4%].

Following administration of naproxen 220 mg twice-daily with low-dose immediate release aspirin (first naproxen dose given 30 minutes prior to aspirin), the interaction was minimal at 24 h following day 10 dose [98.7% vs 95.7%]. However, the interaction was more prominent after discontinuation of naproxen (washout) on day 11 [98.7% vs 84.3%] and did not normalize completely by day 13 [98.5% vs 90.7%] [see Drug Interactions ( 7 )] .

🔬 Clinical Studies ~3 min read ▾

14 CLINICAL STUDIES Naproxen has been studied in patients with rheumatoid arthritis, osteoarthritis, polyarticular juvenile idiopathic arthritis, ankylosing spondylitis, tendonitis and bursitis, and acute gout. Improvement in patients treated for rheumatoid arthritis was demonstrated by a reduction in joint swelling, a reduction in duration of morning stiffness, a reduction in disease activity as assessed by both the investigator and patient, and by increased mobility as demonstrated by a reduction in walking time. Generally, response to naproxen has not been found to be dependent on age, sex, severity or duration of rheumatoid arthritis.

In patients with osteoarthritis, the therapeutic action of naproxen has been shown by a reduction in joint pain or tenderness, an increase in range of motion in knee joints, increased mobility as demonstrated by a reduction in walking time, and improvement in capacity to perform activities of daily living impaired by the disease. In a clinical trial comparing standard formulations of naproxen 375 mg twice a day (750 mg a day) vs 750 mg twice a day (1500 mg/day), 9 patients in the 750 mg group terminated prematurely because of adverse events.

Nineteen patients in the 1500 mg group terminated prematurely because of adverse events. Most of these adverse events were gastrointestinal events. In clinical studies in patients with rheumatoid arthritis, osteoarthritis, and polyarticular juvenile idiopathic arthritis, naproxen has been shown to be comparable to aspirin and indomethacin in controlling the aforementioned measures of disease activity, but the frequency and severity of the milder gastrointestinal adverse effects (nausea, dyspepsia, heartburn) and nervous system adverse effects (tinnitus, dizziness, lightheadedness) were less in naproxen-treated patients than in those treated with aspirin or indomethacin.

In patients with ankylosing spondylitis, naproxen has been shown to decrease night pain, morning stiffness and pain at rest. In double-blind studies the drug was shown to be as effective as aspirin, but with fewer side effects. In patients with acute gout, a favorable response to naproxen was shown by significant clearing of inflammatory changes (e.g., decrease in swelling, heat) within 24 to 48 hours, as well as by relief of pain and tenderness.

Naproxen has been studied in patients with mild to moderate pain secondary to postoperative, orthopedic, postpartum episiotomy and uterine contraction pain and dysmenorrhea. Onset of pain relief can begin within 1 hour in patients taking naproxen. Analgesic effect was shown by such measures as reduction of pain intensity scores, increase in pain relief scores, decrease in numbers of patients requiring additional analgesic medication, and delay in time to remedication.

The analgesic effect has been found to last for up to 12 hours. Naproxen may be used safely in combination with gold salts and/or corticosteroids; however, in controlled clinical trials, when added to the regimen of patients receiving corticosteroids, it did not appear to cause greater improvement over that seen with corticosteroids alone. Whether naproxen has a “steroid-sparing” effect has not been adequately studied.

When added to the regimen of patients receiving gold salts, naproxen did result in greater improvement. Its use in combination with salicylates is not recommended because there is evidence that aspirin increases the rate of excretion of naproxen and data are inadequate to demonstrate that naproxen and aspirin produce greater improvement over that achieved with aspirin alone. In addition, as with other NSAIDs, the combination may result in higher frequency of adverse events than demonstrated for either product alone.

In 51 Cr blood loss and gastroscopy studies with normal volunteers, daily administration of 1000 mg of naproxen has been demonstrated to cause statistically significantly less gastric bleeding and erosion than 3250 mg of aspirin.

🧪 Nonclinical Toxicology 154 words ▾

13 NONCLINICAL TOXICOLOGY

13.1Carcinogenesis, Mutagenesis, and Impairment of Fertility Carcinogenesis A 2-year study was performed in rats to evaluate the carcinogenic potential of naproxen at rat doses of 8, 16, and 24 mg/kg/day (0.05, 0.1, and 0.16 times the maximum recommended human daily dose of 1500 mg/day based on a body surface area comparison). No evidence of tumorigenicity was found. Mutagenesis Naproxen tested positive in the in vivo sister chromatid exchange assay for but was not mutagenic in the in vitro bacterial reverse mutation assay (Ames test).

Impairment of Fertility Male rats were treated with 2, 5, 10, and 20 mg/kg naproxen by oral gavage for 60 days prior to mating and female rats were treated with the same doses for 14 days prior to mating and for the first 7 days of pregnancy. There were no adverse effects on fertility noted (up to 0.13 times the MRDH based on body surface area).

📄 Recent Major Changes 7 words ▾

Warnings and Precautions ( 5.9 ) 11/2024

📄 Package Label / Principal Display Panel 23 words ▾

PACKAGE/LABEL PRINCIPAL DISPLAY PANEL Naproxen Oral Suspension, USP NDC 0054-3630-63 : Bottle of 500 mL Rx only naproxen oral suspension bottle label image

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

Medicaid utilization & spend

📍 This exact package only: Medicaid data is reported per full 11-digit NDC — labeler, product and pack size — so every number here is for this package alone, not the drug overall. Other pack sizes report separately.
💊 Pharmacy benefit only: These are Medicaid outpatient pharmacy claims, billed by NDC. They exclude the medical benefit — clinic- or hospital-administered drugs billed under HCPCS J-codes — so drugs used mostly that way (e.g. Avastin, Lucentis, Keytruda) can look low or missing here. That’s expected, not an error.
📅 Q1 2025 – Q4 2025 · 4 quarters of data
ⓘ The newest quarter is usually incomplete when first published; states restate recent quarters in later CMS releases, so the latest figures typically revise upward. State coverage-policy changes can also shift quarter-to-quarter totals.
Prescriptions last 4 qtrs
604
Units reimbursed last 4 qtrs
168.8K
Gross reimbursed last 4 qtrs
$101.8K
Avg / prescription
$168.62
Avg / unit
$0.6035
Latest quarter Q4 2025
11Rx
Medicaid pays / mL
$0.6035
gross reimbursed
vs
NADAC / mL
$0.2018
acquisition cost
=
Spread
+$0.4017
+199% vs cost
What Medicaid paid per mL (before rebates; includes the pharmacy’s dispensing fee) compared with NADAC — the average price pharmacies pay to buy the drug. A positive spread means Medicaid reimbursed more than the purchase price, before manufacturer rebates.
Fee-for-service vs managed care ⓘ
37% FFS 63% MCO
Fee-for-service · 226 Rx Managed care · 378 Rx
State Medicaid map
Alaska: no data reported AK Maine: no data reported ME Washington: no data reported WA Idaho: no data reported ID Montana: no data reported MT North Dakota: no data reported ND Minnesota: no data reported MN Wisconsin: no data reported WI Michigan: no data reported MI New York: 4,069 units · 20.8 per 100k residents NY Vermont: no data reported VT New Hampshire: no data reported NH Oregon: no data reported OR Nevada: no data reported NV Wyoming: no data reported WY South Dakota: no data reported SD Iowa: no data reported IA Illinois: no data reported IL Indiana: no data reported IN Ohio: 7,098 units · 60.2 per 100k residents OH Pennsylvania: 6,953 units · 53.6 per 100k residents PA New Jersey: no data reported NJ Massachusetts: 8,238 units · 118 per 100k residents MA California: 41,115 units · 106 per 100k residents CA Utah: no data reported UT Colorado: no data reported CO Nebraska: no data reported NE Missouri: no data reported MO Kentucky: no data reported KY West Virginia: no data reported WV Virginia: no data reported VA Maryland: 6,887 units · 111 per 100k residents MD Connecticut: 6,236 units · 172 per 100k residents CT Rhode Island: no data reported RI Arizona: 2,820 units · 37.9 per 100k residents AZ New Mexico: no data reported NM Kansas: no data reported KS Arkansas: no data reported AR Tennessee: no data reported TN North Carolina: no data reported NC South Carolina: 7,866 units · 146 per 100k residents SC Delaware: no data reported DE Oklahoma: no data reported OK Louisiana: no data reported LA Mississippi: no data reported MS Alabama: 1,150 units · 22.5 per 100k residents AL Georgia: 2,639 units · 23.9 per 100k residents GA D.C.: no data reported DC Hawaii: no data reported HI Texas: 73,699 units · 242 per 100k residents TX Florida: no data reported FL
Units reimbursed · per 100k residents
20.8242
gray = no data reported ⓘ
Colors are per 100,000 residents, so big states don’t automatically dominate. Tap or hover a state for its actual totals.
Tap or hover a state
…for its Medicaid breakdown
🏆 Top states by units · per 100k residents
1 Texas 242 /100k
2 Connecticut 172 /100k
3 South Carolina 146 /100k
4 Massachusetts 118 /100k
5 Maryland 111 /100k
6 California 106 /100k
7 Ohio 60.2 /100k
8 Pennsylvania 53.6 /100k
National units — by quarter
💵 About the dollar figures: “reimbursed” is what Medicaid paid pharmacies before confidential manufacturer rebates, so the program’s real net cost is lower than these numbers. Fee-for-service and managed-care claims are combined unless split above. Source: CMS State Drug Utilization Data; per-100k rates use 2023 Census population estimates.

Medicare Part D spend CMS · PART D · 2026 (Q1)

Medicare Part D (outpatient prescription) spending for Naproxen — the program that covers self-administered drugs. 17 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 Naproxen. 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.
Period
Total Part D spend
$5.99M
Claims incl. refills
655K
Beneficiaries
478.5K
Spend / beneficiary
$12.52
Spend / claim
$9.15
Trend by period
💵 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.
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.