Home › NDC Lookup › Ingredients › Metoprolol Tartrate › 55154-0278-00

Metoprolol Tartrate 50 mg Tablet, Film Coated

by Cardinal Health 107, LLC · 10 BLISTER PACK in 1 BAG (55154-0278-0) / 1 TABLET, FILM COATED in 1 BLISTER PACK

NDC 55154-0278-00

🏷️ FDA NDC (as labeled) 55154-0278-0 billing pads the package segment with a zero

Rx only Generic On market Non-controlled

🗂️ Data synced 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 Dr. Brian Staiger, PharmD

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

⚠️

Other active recalls for Metoprolol Tartrate (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 · May 6, 2024 — Presence of Foreign Substance: metal in tablet (Rubicon Research Private Limited) · FDA recall D-0517-2024

Each entry is an official FDA enforcement report — look up any recall number in the FDA recall database ↗

🆔 Identity & classification

FDA NDC (as labeled) 55154-0278-0

Product NDC 55154-0278

11-digit billing NDC 55154027800

RxCUI 866514, 866924

UNII W5S57Y3A5L

Application # ANDA076704

SPL Set ID 0ccb9d3c-3f9a-486d-9b27-dc6f3ef6f4ed

Established class (EPC) beta-Adrenergic Blocker

Mechanism of action Adrenergic beta-Antagonists

DEA schedule Non-controlled

Marketing category ANDA

Marketing status On market

FDA listing status Listed (active directory)

Marketing start 2026-07-10

Route ORAL

Dosage form TABLET, FILM COATED

Substance METOPROLOL TARTRATE

TE code (Orange Book) AB · RLD · RS

Why two NDCs? The FDA registers this code as 55154-0278-0 — a 5-4-1 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 package segment → 55154-0278-00. 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 beta-Adrenergic Blocker class.

Pharmacologic class beta-Adrenergic Blocker

Drug family (ATC) Beta blocking agents and calcium channel blockers, Beta blocking agents, selective

How it works Adrenergic beta-Antagonists

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.

🏭 Manufacturer & labeler

LabelerCardinal Health 107, LLC

Application holderMYLAN PHARMACEUTICALS INC

FDA applicationANDA076704 (ANDA)

Labeler code55154

First marketedJul 2026

Product typeHuman Prescription Drug

Portfolio470 products on file

🔎 All NDCs from Cardinal Health 107, LLC

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.

🩺 Clinical

📗 Our plain-language guide HelloPharmacist

That depends on why you were prescribed it. Metoprolol is a beta-blocker, which means it slows your heart rate and reduces the workload on your heart. Depending on your formulation...
What exactly is metoprolol supposed to do for me?
Please don't stop suddenly — this is one of the most important things to know about this drug. Stopping metoprolol abruptly, especially if you have any heart disease, can cause you...
Can I stop taking metoprolol if I feel fine or if it makes me tired?

📖 Read our full Metoprolol guide →

Patient education

📘 MedlinePlus patient leaflet ↗

Supplement & herbal interactions

🌿 Drug–supplement interaction checker →

Nutrient depletion considerations

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

COENZYME Q10 Insufficient Evidence

🧪 Full Metoprolol 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.

🧪 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 3SY5LH9PMK
Anhydrous lactose is a milk sugar with no water content. It acts as a filler and binder in tablets and capsules, adding bulk and helping ingredients stick together.
UNII M28OL1HH48
Croscarmellose sodium is a plant-based substance derived from cellulose. It acts as a disintegrant, helping tablets and capsules break down quickly in the digestive system so the medicine can be absorbed.
UNII ZK64F7XSTX
A red synthetic colorant made by combining D&C Red No. 27 dye with aluminum salts. It's used to give tablets, capsules, or other medicines their red or pink color.
UNII 4AQJ3LG584
A synthetic blue dye combined with aluminum to create a stable colorant. It's used in medicines and supplements to add blue color or create specific shades for product identification and appearance.
UNII 6T47AS764T
Red 40 Lake is a synthetic colorant made by combining Red 40 dye with aluminum hydroxide. It's used to give tablets, capsules, and other medicines a red or pink color for identification and appearance.
UNII 0VUT3PMY82
Hypromellose 2910 is a plant-derived thickening agent made from cellulose. In medicines, it forms protective coatings on tablets or capsules, controls how fast the drug releases, and thickens liquid formulations.
UNII 1IVH67816N
Hypromellose 2910 is a plant-derived cellulose compound used as a thickener and film-former in medicines. It helps control how quickly the medication dissolves and creates protective coatings on tablets or capsules.
UNII 0WZ8WG20P6
Hypromellose 2910 is a plant-based cellulose derivative that acts as a thickener, binder, and film-coating agent. It helps control how quickly the medicine dissolves and protects the tablet or capsule from moisture and light.
UNII 70097M6I30
Magnesium stearate is a salt made from magnesium and stearic acid, a fatty substance. It's used in tablets and capsules as a lubricant and glidant to help ingredients flow smoothly during manufacturing and prevent sticking.
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 VH2XOU12IE
Polydextrose is a synthetic polymer made from dextrose (sugar) that acts as a bulking agent and filler in medicines. It helps give tablets and capsules proper volume and texture while often adding slight sweetness.
UNII B697894SGQ
Polyethylene glycol 400 is a clear, thick liquid made from petroleum-derived polymers. It acts as a solvent and humectant in medicines, helping dissolve active ingredients and retain moisture in the formulation.
UNII Q662QK8M3B
Polyethylene glycol 8000 is a synthetic polymer made from ethylene oxide. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and add bulk to the medicine.
UNII FZ989GH94E
Povidone is a synthetic polymer made from a plastic-like material. It acts as a binder to hold tablet ingredients together and as a disintegrant to help the tablet break apart in your stomach so the medicine can be absorbed.
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 368GB5141J
A detergent and foaming agent derived from coconut or palm oil. In medications, it helps break down and mix oil and water-based ingredients, aids in tablet disintegration, and improves how the drug dissolves and spreads in the mouth or digestive system.
UNII 15FIX9V2JP
Titanium dioxide is a bright white mineral powder commonly used as a colorant and opacifying agent. It makes pills and tablets white or lighter in color and helps make coatings non-transparent.
UNII XHX3C3X673
Triacetin is a clear, oily liquid made from glycerin and acetic acid. It works as a plasticizer and solvent in medicines, helping soften coatings and improve how liquids mix together in formulations.

18 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.

💲 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 system	Per each	Per 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.

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.

🔁 Therapeutic equivalents

Product	Labeler	Pack	NADAC/unit	TE	Status	Price vs. this
Metoprolol Tartrate 50 mg 62584-0266-01	American	1 tablet	$0.019	AB	Availability likely	—
Metoprolol Tartrate 50 mg 65862-0063-01	Aurobindo	100 tablets	$0.019	AB	Availability likely	—
Metoprolol Tartrate 50 mg 57237-0101-01	Rising	100 tablets	$0.019	AB	Availability likely	—
Metoprolol Tartrate 50 mg 52817-0361-00	TruPharma	1000 tablets	$0.019	AB	Availability likely	—
Metoprolol Tartrate 50 mg 72888-0210-00	Advagen	1000 tablets	$0.019	AB	Availability likely	—
Metoprolol Tartrate 50 mg 51079-0801-20	Mylan	1 tablet	$0.019	AB	Availability likely	—
Metoprolol Tartrate 50 mg 52817-0252-00	TRUPHARMA	1000 tablets	$0.019	AB	Availability likely	—
Metoprolol Tartrate 50 mg 68645-0190-59	Legacy	60 tablets	$0.019	AB	Availability likely	—
Metoprolol Tartrate 50 mg 76282-0795-01	Exelan	100 tablets	$0.019	AB	Availability likely	—
Metoprolol Tartrate 50 mg 72888-0005-00	Advagen	1000 tablets	$0.019	AB	Availability likely	—
Metoprolol Tartrate 50 mg 00378-0032-01	Mylan	100 tablets	$0.019	AB	Availability likely	—
Lopressor 50 mg 30698-0458-01	Validus	100 tablets	$2.416	AB	Availability likely	—
Metoprolol Tartrate 50 mg 63187-0609-00	Proficient	100 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 70882-0133-60	Cambridge	60 tablets	—	AB	Discontinued	—
Metoprolol Tartrate 50 mg 71610-0138-60	Aphena	90 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 71610-0147-60	Aphena	90 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 71610-0565-30	Aphena	30 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 50090-6076-00	A-S	90 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 60760-0524-60	St.	60 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 76420-0953-00	Asclemed	1000 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 87063-0186-01	ASCLEMED	100 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 42708-0041-60	QPharma	60 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 50090-1979-00	A-S	30 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 55154-4790-00	Cardinal	1 tablet	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 68071-3985-08	NuCare	180 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 68788-8886-01	Preferred	100 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 42708-0198-60	QPharma,	60 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 53401-0016-60	Aphena	90 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 68071-4755-02	NuCare	120 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 71335-1146-01	Bryant	100 tablets	—	AB	Discontinued	—
Metoprolol Tartrate 50 mg 71335-2656-01	Bryant	100 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 82804-0165-90	Proficient	90 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 43063-0821-30	PD-Rx	30 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 60760-0680-60	St.	60 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 68071-3946-03	NuCare	30 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 71205-0701-30	Proficient	30 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 82804-0253-30	Proficient	30 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 50090-5060-00	A-S	90 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 50090-7553-00	A-S	30 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 68071-4957-01	NuCare	100 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 70518-3293-00	REMEDYREPACK	60 tablets	—	AB	Discontinued	—
Metoprolol Tartrate 50 mg 72789-0549-93	PD-Rx	180 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 82804-0978-00	Proficient	100 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 50090-6084-00	A-S	90 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 50090-7554-00	A-S	90 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 50090-7970-00	A-S	90 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 51407-0110-01	Golden	100 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 51655-0527-25	Northwind	60 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 55154-5512-00	Cardinal	1 tablet	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 67046-1569-03	Coupler	30 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 68788-8211-01	Preferred	100 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 72789-0535-90	PD-Rx	90 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 50090-2149-00	A-S	30 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 68071-4769-01	NuCare	100 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 69367-0354-01	Westminster	100 tablets	—	AB	Discontinued	—
Metoprolol Tartrate 50 mg 42708-0147-60	QPharma,	60 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 48433-0074-20	Safecor	1 tablet	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 50090-6083-00	A-S	30 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 50090-7969-00	A-S	30 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 51655-0281-25	Northwind	60 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 72189-0677-90	Direct_Rx	90 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 72789-0555-90	PD-Rx	90 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 68788-7548-01	Preferred	100 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 71335-2164-01	Bryant	100 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mgthis 55154-0278-00	Cardinal	1 tablet	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 72789-0583-60	PD-Rx	60 tablets	—	AB	FDA listed	—
Metoprolol Tartrate 50 mg 67296-2322-03	Redpharm	30 tablets	—	AB	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

🏛️

2026

On the market since

Jul 2026

📍

2026

Currently FDA-listed

listed with the FDA

🔓

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.

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

Medicare Part D (outpatient prescription) spending for Metoprolol Tartrate — the program that covers self-administered drugs. 13 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 Metoprolol Tartrate. 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

$27.2M

Claims incl. refills

3.6M

Beneficiaries

2.6M

Spend / beneficiary

$10.52

Spend / claim

$7.50

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.

🔬 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 METOPROLOL TARTRATE — the ingredient across all brands.

Top reported reactions

Fatigue17,503

Dyspnoea15,655

Nausea15,032

Diarrhoea15,029

Dizziness12,868

Death10,767

Asthenia10,471

Reporter sex

Serious outcomes

Hospitalization108,722

Death30,933

Life-threatening12,202

Disabling6,077

Reports over time (by year) — tap or hover for the count & year

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.

📦 Packaging — all sizes for this product

Package NDC	Description	Marketing start	Status
55154-0278-00 You're viewing this	10 BLISTER PACK in 1 BAG (55154-0278-0) / 1 TABLET, FILM COATED in 1 BLISTER PACK	2026-07-10	Active

🧭 About this NDC listing & data coverage

Finished prescription product

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.

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 FDA registers it as 55154-0278-0, which is what is printed on the packaging and shown on DailyMed. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero: 55154-0278-00, written without dashes as 55154027800. The Identity section at the top of this page lists every form of this code.

What do the three segments of this NDC mean?

In 55154-0278-00, the first segment (55154) is the labeler code FDA assigned to Cardinal Health 107, LLC; the middle segment (0278) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (00) identifies this exact package size and type. Together they name one specific package of one specific product.

Is this package still being marketed?

Yes, per the latest FDA NDC Directory data on this page: this package is listed as actively marketed, with no marketing end date reported by Cardinal Health 107, LLC. Listing status can change — the directory data on this page refreshes weekly.

Who lists this product with the FDA?

Cardinal Health 107, 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.

📄 Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. 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 📋 Description 💬 Information for Patients

🎯 Indications and Usage ~2 min read ▾

1 INDICATIONS AND USAGE Metoprolol tartrate tablets are a beta-adrenergic blocker indicated for the treatment of: • Hypertension, to lower blood pressure. Lowering blood pressure reduces the risk of fatal and non-fatal cardiovascular events, primarily strokes and myocardial infarctions. ( 1.1 ) • Angina Pectoris.

( 1.2 ) • Myocardial Infarction, to reduce the risk of cardiovascular mortality when used in conjunction with intravenous metoprolol therapy in patients with definite or suspected acute myocardial infarction in hemodynamically stable patients. ( 1.3 )

1.1Hypertension Metoprolol tartrate tablets are indicated for the treatment of hypertension in adult patients, to lower blood pressure. Lowering blood pressure lowers the risk of fatal and non-fatal cardiovascular events, primarily strokes and myocardial infarctions. These benefits have been seen in controlled trials of antihypertensive drugs from a wide variety of pharmacologic classes including metoprolol.

Control of high blood pressure should be part of comprehensive cardiovascular risk management, including, as appropriate, lipid control, diabetes management, antithrombotic therapy, smoking cessation, exercise, and limited sodium intake. Many patients will require more than 1 drug to achieve blood pressure goals. For specific advice on goals and management, see published guidelines, such as those of the National High Blood Pressure Education Program’s Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC).

Numerous antihypertensive drugs, from a variety of pharmacologic classes and with different mechanisms of action, have been shown in randomized controlled trials to reduce cardiovascular morbidity and mortality, and it can be concluded that it is blood pressure reduction, and not some other pharmacologic property of the drugs, that is largely responsible for those benefits. The largest and most consistent cardiovascular outcome benefit has been a reduction in the risk of stroke, but reductions in myocardial infarction and cardiovascular mortality also have been seen regularly.

Elevated systolic or diastolic pressure causes increased cardiovascular risk, and the absolute risk increase per mmHg is greater at higher blood pressures, so that even modest reductions of severe hypertension can provide substantial benefit. Relative risk reduction from blood pressure reduction is similar across populations with varying absolute risk, so the absolute benefit is greater in patients who are at higher risk independent of their hypertension (for example, patients with diabetes or hyperlipidemia), and such patients would be expected to benefit from more aggressive treatment to a lower blood pressure goal.

Some antihypertensive drugs have smaller blood pressure effects (as monotherapy) in black patients, and many antihypertensive drugs have additional approved indications and effects (e.g., on angina, heart failure, or diabetic kidney disease). These considerations may guide selection of therapy. Metoprolol tartrate tablets may be administered with other antihypertensive agents.

1.2Angina Pectoris Metoprolol tartrate tablets are indicated in the long-term treatment of angina pectoris, to reduce angina attacks and to improve exercise tolerance.

1.3Myocardial Infarction Metoprolol tartrate tablets are indicated in the treatment of hemodynamically stable patients with definite or suspected acute myocardial infarction to reduce cardiovascular mortality when used alone or in conjunction with intravenous metoprolol.

⏱️ Dosage and Administration ~2 min read ▾

2 DOSAGE AND ADMINISTRATION • Administer once daily with food or after a meal. Titrate at weekly or longer intervals as needed and tolerated. ( 2 ) • Hypertension: Recommended starting dosage is 100 mg daily, in single or divided doses.

( 2.1 ) • Angina Pectoris: Recommended starting dosage is 100 mg daily, given as two divided doses. ( 2.2 ) • Myocardial Infarction: The starting dosage depends upon tolerance of intravenous metoprolol, see full prescribing information. ( 2.3 )

2.1Hypertension Individualize the dosage of metoprolol tartrate tablets. Metoprolol tartrate tablets should be taken with or immediately following meals. The usual initial dosage is 100 mg daily in single or divided doses.

Adjust dosage at weekly (or longer) intervals until optimum blood pressure reduction is achieved. In general, the maximum effect of any given dosage level will be apparent after 1 week of therapy. The effective dosage range of metoprolol tartrate tablets is 100 mg to 450 mg per day.

Dosages above 450 mg per day have not been studied. While once-daily dosing can maintain a reduction in blood pressure throughout the day, lower doses (especially 100 mg) may not maintain a full effect at the end of the 24-hour period. Larger or more frequent daily doses may be required.

Measure blood pressure near the end of the dosing interval to determine whether satisfactory control is being maintained throughout the day.

2.2Angina Pectoris The dosage of metoprolol tartrate tablets should be individualized. Metoprolol tartrate tablets should be taken with or immediately following meals. The usual initial dosage is 100 mg daily, given in two divided doses.

Gradually increase the dosage at weekly intervals until optimum clinical response has been obtained or there is a pronounced slowing of the heart rate. The effective dosage range of metoprolol tartrate tablets is 100 to 400 mg per day. Dosages above 400 mg per day have not been studied.

If treatment is to be discontinued, reduce the dosage gradually over a period of 1 - 2 weeks [see Warnings and Precautions (5.1) ].

2.3Myocardial Infarction See prescribing information of intravenous metoprolol for dosage instructions for intravenous therapy. In patients who tolerate the full intravenous dose, initiate metoprolol tartrate tablets, 50 mg every 6 hours, 15 minutes after the last intravenous dose of metoprolol and continue for 48 hours. In the case of intolerance, reduce dose to 25 mg and administer for 48 hours.

Titrate, based on tolerability, to a maintenance dosage of 100 mg twice daily. Continue therapy for at least 3 months. Although the efficacy of metoprolol tartrate tablets beyond 3 months has not been conclusively established, data from studies with other beta-blockers suggest that treatment should be continued for 1 to 3 years.

💊 Dosage Forms and Strengths 199 words ▾

3 DOSAGE FORMS AND STRENGTHS Metoprolol Tartrate Tablets, USP are available containing 25 mg, 37.5 mg, 50 mg, 75 mg or 100 mg of metoprolol tartrate, USP. • The 25 mg tablets are white, film-coated, round, scored tablets debossed with M over 18 on one side of the tablet and scored on the other side. • The 37.5 mg tablets are light blue, film-coated, round, scored tablets debossed with M above the score and MT below the score on one side of the tablet and 37.5 on the other side. • The 50 mg tablets are pink, film-coated, round, scored tablets debossed with M over 32 on one side of the tablet and scored on the other side. • The 75 mg tablets are white, film-coated, round, scored tablets debossed with M above the score and MT below the score on one side of the tablet and 75 on the other side. • The 100 mg tablets are light blue, film-coated, round, scored tablets debossed with M over 47 on one side of the tablet and scored on the other side. • Metoprolol Tartrate Tablets: 25 mg, 37.5 mg, 50 mg, 75 mg and 100 mg.

( 3 )

⛔ Contraindications 84 words ▾

4 CONTRAINDICATIONS Metoprolol tartrate tablets are contraindicated in severe bradycardia, second- or third-degree heart block, cardiogenic shock, systolic blood pressure <100, decompensated heart failure, sick sinus syndrome (unless a permanent pacemaker is in place), and in patients who are hypersensitive to any component of this product. • Known hypersensitivity to product components. ( 4 ) • Severe bradycardia: Greater than first degree heart block, or sick sinus syndrome without a pacemaker. ( 4 ) • Cardiogenic shock or decompensated heart failure.

( 4 )

⚠️ Warnings and Cautions ~3 min read ▾

5 WARNINGS AND PRECAUTIONS • Abrupt cessation may exacerbate myocardial ischemia. ( 5.1 ) • Heart Failure: Worsening cardiac failure may occur. ( 5.2 ) • Bronchospastic Disease: Avoid beta-blockers.

( 5.3 ) • Pheochromocytoma: Initiate therapy with an alpha blocker. ( 5.4 ) • Major Surgery: Avoid initiation of high-dose extended-release metoprolol in patients undergoing non-cardiac surgery. Do not routinely withdraw chronic beta-blocker therapy prior to surgery.

( 5.5 , 6.1 ) • Diabetes: May mask symptoms of hypoglycemia. ( 5.6 ) • Thyrotoxicosis: Abrupt withdrawal in patients with thyrotoxicosis might precipitate a thyroid storm. ( 5.7 ) • Peripheral Vascular Disease: Can aggravate symptoms of arterial insufficiency.

( 5.9 )

5.1Abrupt Cessation of Therapy Following abrupt cessation of therapy with certain beta-blocking agents, exacerbations of angina pectoris and, in some cases, myocardial infarction have occurred. When discontinuing chronically administered metoprolol tartrate tablets, particularly in patients with ischemic heart disease, gradually reduce the dosage over a period of 1 to 2 weeks and monitor the patient. If angina markedly worsens or acute coronary ischemia develops, promptly reinstate metoprolol tartrate tablets, and take measures appropriate for the management of unstable angina.

Warn patients not to interrupt therapy without their physician’s advice. Because coronary artery disease is common and may be unrecognized, avoid abruptly discontinuing metoprolol tartrate tablets in patients treated only for hypertension.

5.2Heart Failure Worsening cardiac failure may occur during up-titration of metoprolol tartrate tablets. If such symptoms occur, increase diuretics and restore clinical stability before advancing the dose of metoprolol tartrate tablets [see Dosage and Administration (2) ]. It may be necessary to lower the dose of metoprolol tartrate tablets or temporarily discontinue it.

Such episodes do not preclude subsequent successful titration of metoprolol tartrate tablets.

5.3Bronchospastic Disease Patients with bronchospastic disease, should in general, not receive beta-blockers, including metoprolol tartrate tablets. Because of its relative beta 1 cardio-selectivity, however, metoprolol tartrate tablets may be used in patients with bronchospastic disease who do not respond to, or cannot tolerate, other antihypertensive treatment. Because beta 1 - selectivity is not absolute, use the lowest possible dose of metoprolol tartrate tablets.

Bronchodilators, including beta 2 - agonists, should be readily available or administered concomitantly [see Dosage and Administration (2) ].

5.4Pheochromocytoma If metoprolol tartrate tablets are used in the setting of pheochromocytoma, it should be given in combination with an alpha blocker, and only after the alpha blocker has been initiated. Administration of beta-blockers alone in the setting of pheochromocytoma has been associated with a paradoxical increase in blood pressure due to the attenuation of beta-mediated vasodilatation in skeletal muscle.

5.5Major Surgery Avoid initiation of a high-dose regimen of beta-blocker therapy in patients undergoing non-cardiac surgery, since such use in patients with cardiovascular risk factors has been associated with bradycardia, hypotension, stroke and death. Chronically administered beta-blocking therapy should not be routinely withdrawn prior to major surgery, however, the impaired ability of the heart to respond to reflex adrenergic stimuli may augment the risks of general anesthesia and surgical procedures.

5.6Hypoglycemia Beta-blockers may prevent early warning signs of hypoglycemia, such as tachycardia, and increase the risk for severe or prolonged hypoglycemia at any time during treatment, especially in patients with diabetes mellitus or children and patients who are fasting (i.e., surgery, not eating regularly, or are vomiting). If severe hypoglycemia occurs, patients should be instructed to seek emergency treatmen…

🤒 Adverse Reactions ~2 min read ▾

6 ADVERSE REACTIONS The following adverse reactions are described elsewhere in labeling: • Worsening angina or myocardial infarction [see Warnings and Precautions (5) ]. • Worsening heart failure [see Warnings and Precautions (5) ] . • Worsening AV block [see Contraindications (4) ] . • Most common adverse reactions: tiredness, dizziness, depression, shortness of breath, bradycardia, hypotension, diarrhea, pruritus, rash. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Mylan at 1-877-446-3679 (1-877-4-INFO-RX) 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. Hypertension and Angina Most adverse effects have been mild and transient. Central Nervous System: Tiredness and dizziness have occurred in about 10% of patients.

Depression has been reported in about 5 of 100 patients. Mental confusion and short-term memory loss have been reported. Headache, nightmares, and insomnia have also been reported.

Cardiovascular: Shortness of breath and bradycardia have occurred in approximately 3% of patients. Cold extremities; arterial insufficiency, usually of the Raynaud type; palpitations; heart failure exacerbations; peripheral edema; and hypotension have been reported in about 1% of patients. Gangrene in patients with pre-existing severe peripheral circulatory disorders has also been reported [see Contraindications (4) and Warnings and Precautions (5.2) ].

Respiratory: Wheezing (bronchospasm) and dyspnea have been reported in about 1% of patients [see Warnings and Precautions (5.3) ]. Rhinitis has also been reported. Gastrointestinal: Diarrhea has occurred in about 5% of patients.

Nausea, dry mouth, gastric pain, constipation, flatulence, and heartburn have been reported in about 1% of patients. Vomiting was a common occurrence. Hypersensitive Reactions: Pruritus or rash have occurred in about 5% of patients.

Photosensitivity and worsening of psoriasis has been reported. Miscellaneous: Peyronie’s disease, musculoskeletal pain, blurred vision, and tinnitus has been reported. Myocardial Infarction In general, the adverse reactions observed in trials with metoprolol in MI are consistent with the hypertension and angina experience.

In a randomized comparison of metoprolol tartrate tablets and placebo in the setting of acute MI the following adverse reactions were reported: Metoprolol Tartrate Tablets Placebo Hypotension (systolic BP < 90 mm Hg) 27.4% 23.2% Bradycardia (heart rate < 40 beats/min) 15.9% 6.7% Second- or third-degree heart block 4.7% 4.7% First-degree heart block (P-R ≥ 0.26 sec) 5.3% 1.9% Heart failure 27.5% 29.6%

6.2Post-Marketing Experience The following adverse reactions have been identified during post approval use of metoprolol tartrate tablets. 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. Central Nervous System: Reversible mental depression progressing to catatonia; an acute reversible syndrome characterized by disorientation for time and place, short-term memory loss, emotional lability, slightly clouded sensorium, and decreased performance on neuropsychometrics.

Cardiovascular: Intensification of AV block [see Contraindications (4) ] . Hematologic: Agranulocytosis, nonthrombocytopenic purpura and thrombocytopenic purpura. Hypersensitive Reactions: Fever combined with aching and sore throat, laryngospasm and respiratory distress.

Laboratory Findings Increase in blood triglycerides, elevated transaminase and decrease in High Density Lipoprotein (HDL)

🔄 Drug Interactions ~2 min read ▾

7 DRUG INTERACTIONS • Catecholamine-depleting drugs may have an additive effect when given with beta-blocking agents. ( 7.1 ) • Patients may be unresponsive to the usual doses of epinephrine used to treat allergic reaction. ( 7.2 ) • CYP2D6 Inhibitors are likely to increase metoprolol concentration.

( 7.3 ) • Concomitant use of glycosides, clonidine, and diltiazem and verapamil with beta-blockers can increase the risk of bradycardia. ( 7.4 ) • Beta-blockers including metoprolol, may exacerbate the rebound hypertension that can follow the withdrawal of clonidine. ( 7.4 )

7.1Catecholamine Depleting Drugs Catecholamine depleting drugs (e.g., reserpine, monoamine oxidase (MAO) inhibitors) may have an additive effect when given with beta-blocking agents. Observe patients treated with metoprolol tartrate tablets plus a catecholamine depletor for evidence of hypotension or marked bradycardia, which may produce vertigo, syncope, or postural hypotension.

7.2Epinephrine While taking beta-blockers, patients with a history of severe anaphylactic reactions to a variety of allergens may be more reactive to repeated challenge and may be unresponsive to the usual doses of epinephrine used to treat an allergic reaction.

7.3CYP2D6 Inhibitors Drugs that are strong inhibitors of CYP2D6 such as quinidine, fluoxetine, paroxetine, and propafenone were shown to double metoprolol concentrations. While there is no information about moderate or weak inhibitors, these too are likely to increase metoprolol concentration. Increases in plasma concentration decrease the cardioselectivity of metoprolol [see Clinical Pharmacology (12.3) ].

Monitor patients closely, when the combination cannot be avoided.

7.4Negative Chronotropes Digitalis glycosides, clonidine, diltiazem and verapamil slow atrioventricular conduction and decrease heart rate. Concomitant use with beta-blockers can increase the risk of bradycardia. If clonidine and a beta-blocker, such as metoprolol are coadministered, withdraw the beta-blocker several days before the gradual withdrawal of clonidine because beta-blockers may exacerbate the rebound hypertension that can follow the withdrawal of clonidine.

If replacing clonidine by beta-blocker therapy, delay the introduction of beta-blockers for several days after clonidine administration has stopped .

Drug Interactions Metoprolol is metabolized predominantly by CYP2D6. In healthy subjects with CYP2D6 extensive metabolizer phenotype, coadministration of quinidine 100 mg, a potent CYP2D6 inhibitor, and immediate-release metoprolol 200 mg tripled the concentration of S-metoprolol and doubled the metoprolol elimination half-life. In four patients with cardiovascular disease, coadministration of propafenone 150 mg t.i.d. with immediate-release metoprolol 50 mg t.i.d. increased the steady-state metoprolol concentration 2- to 5-fold compared to metoprolol alone.

Extensive metabolizers who concomitantly use CYP2D6 inhibiting drugs will have increased (several-fold) metoprolol blood levels, decreasing metoprolol's cardioselectivity [see Drug Interactions (7.2) ] .

👥 Use in Specific Populations ~3 min read ▾

8 USE IN SPECIFIC POPULATIONS • Hepatic Impairment: Consider initiating metoprolol tartrate tablet therapy at low doses and gradually increase dosage to optimize therapy, while monitoring closely for adverse events. ( 8.6 )

8.1Pregnancy Risk Summary Available data from published observational studies have not demonstrated an association of adverse developmental outcomes with maternal use of metoprolol during pregnancy (see Data ) . Untreated hypertension and myocardial infarction during pregnancy can lead to adverse outcomes for the mother and the fetus (see) . In animal reproduction studies, metoprolol has been shown to increase post-implantation loss and decrease neonatal survival in rats at oral dosages of 500 mg/kg/day, approximately 11 times the daily dose of 450 mg in a 60-kg patient on a mg/m 2 basis.

All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. 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 Consideration Disease-associated maternal and/or embryo/fetal risk Hypertension in pregnancy increases the maternal risk for pre-eclampsia, gestational diabetes, premature delivery, and delivery complications (e.g., need for cesarean section, and post-partum hemorrhage). Hypertension increases the fetal risk for intrauterine growth restriction and intrauterine death. Pregnant women with hypertension should be carefully monitored and managed accordingly.

Fetal/Neonatal adverse reactions Metoprolol crosses the placenta. Neonates born to mothers who are receiving metoprolol during pregnancy, may be at risk for hypotension, hypoglycemia, bradycardia, and respiratory depression. Observe neonates and manage accordingly.

Data Human Data Data from published observational studies did not demonstrate an association of major congenital malformations and use of metoprolol in pregnancy. The published literature has reported inconsistent findings of intrauterine growth retardation, preterm birth and perinatal mortality with maternal use of metoprolol during pregnancy; however, these studies have methodological limitations hindering interpretation. Methodological limitations include retrospective design, concomitant use of other medications, and other unadjusted confounders that may account for the study findings including the underlying disease in the mother.

These observational studies cannot definitely establish or exclude any drug-associated risk during pregnancy. Animal Data Metoprolol has been shown to increase post-implantation loss and decrease neonatal survival in rats at oral dosages of 500 mg/kg/day, i.e., 11 times, on a mg/m 2 basis, the daily dose of 450 mg in a 60-kg patient. No fetal abnormalities were observed when pregnant rats received metoprolol orally up to a dose of 200 mg/kg/day, i.e., 4 times, the daily dose of 400mg in a 60-kg patient.

8.2Lactation Risk Summary Limited available data from published literature report that metoprolol is present in human milk. The estimated daily infant dose of metoprolol received from breastmilk ranges from 0.05 mg to less than 1 mg. The estimated relative infant dosage was 0.5% to 2% of the mother's weight-adjusted dosage (see Data ) .

No adverse reactions of metoprolol on the breastfed infant have been identified. There is no information regarding the effects of metoprolol on milk production. Clinical Consideration Monitoring for adverse reactions For a lactating woman who is a slow metabolizer of metoprolol, monitor the breastfed infant for bradycardia and other symptoms of beta-blockade such as dry mouth, skin or eyes, diarrhea or constipation.

In a report of 6 mothers taking metoprolol, none reported adverse effects in her breastfed infant. Data Limited published cases estimate the infant daily do…

🤰 Pregnancy ~2 min read ▾

🧒 Pediatric Use 17 words ▾

8.4Pediatric Use Safety and effectiveness of metoprolol tartrate tablets have not been established in pediatric patients.

🧓 Geriatric Use 134 words ▾

8.5Geriatric Use Clinical studies of metoprolol tartrate tablets in hypertension did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience in hypertensive patients has not identified differences in responses between elderly and younger patients. In worldwide clinical trials of metoprolol tartrate tablets in myocardial infarction, where approximately 478 patients were over 65 years of age (0 over 75 years of age), no age-related differences in safety and effectiveness were found.

Other reported clinical experience in myocardial infarction has not identified differences in response between the elderly and younger patients. In general, use a low initial starting dose in elderly patients given their greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.

🆘 Overdosage 183 words ▾

10 OVERDOSAGE Signs and Symptoms – Overdosage of metoprolol tartrate tablets may lead to severe bradycardia, hypotension, and cardiogenic shock. Clinical presentation can also include: atrioventricular block, heart failure, bronchospasm, hypoxia, impairment of consciousness/coma, nausea and vomiting. Treatment – Consider treating the patient with intensive care.

Patients with myocardial infarction or heart failure may be prone to significant hemodynamic instability. Beta-blocker overdose may result in significant resistance to resuscitation with adrenergic agents, including beta-agonists. On the basis of the pharmacologic actions of metoprolol, employ the following measures.

Hemodialysis is unlikely to make a useful contribution to metoprolol elimination [see Clinical Pharmacology (12.3) ] . Bradycardia: Evaluate the need for atropine, adrenergic-stimulating drugs or pacemaker to treat bradycardia and conduction disorders. Hypotension: Treat underlying bradycardia.

Consider intravenous vasopressor infusion, such as dopamine or norepinephrine. Heart failure and shock: May be treated when appropriate with suitable volume expansion, injection of glucagon (if necessary, followed by an intravenous infusion of glucagon), intravenous administration of adrenergic drugs such as dobutamine, with α1 receptor agonistic drugs added in presence of vasodilation. Bronchospasm: Can usually be reversed by bronchodilators.

🧬 Clinical Pharmacology ~3 min read ▾

12 CLINICAL PHARMACOLOGY

12.1Mechanism of Action Metoprolol is a beta 1 -selective (cardioselective) adrenergic receptor blocking agent. This preferential effect is not absolute, however, and at higher plasma concentrations, metoprolol also inhibits beta 2 -adrenoreceptors, chiefly located in the bronchial and vascular musculature. Metoprolol has no intrinsic sympathomimetic activity, and membrane-stabilizing activity is detectable only at plasma concentrations much greater than required for beta-blockade.

Animal and human experiments indicate that metoprolol slows the sinus rate and decreases AV nodal conduction. The relative beta 1 -selectivity of metoprolol has been confirmed by the following: (1) In normal subjects, metoprolol is unable to reverse the beta 2 -mediated vasodilating effects of epinephrine. This contrasts with the effect of nonselective beta-blockers, which completely reverse the vasodilating effects of epinephrine.

(2) In asthmatic patients, metoprolol reduces FEV 1 and FVC significantly less than a nonselective beta-blocker, propranolol, at equivalent beta 1 -receptor blocking doses. Hypertension The mechanism of the antihypertensive effects of beta-blocking agents has not been elucidated. However, several possible mechanisms have been proposed: (1) competitive antagonism of catecholamines at peripheral (especially cardiac) adrenergic neuron sites, leading to decreased cardiac output; (2) a central effect leading to reduced sympathetic outflow to the periphery; and (3) suppression of renin activity.

Angina Pectoris By blocking catecholamine-induced increases in heart rate, in velocity and extent of myocardial contraction, and in blood pressure, metoprolol reduces the oxygen requirements of the heart at any given level of effort, thus making it useful in the long-term management of angina pectoris. Heart Failure The precise mechanism for the beneficial effects of beta-blockers in heart failure has not been elucidated.

12.2Pharmacodynamics Clinical pharmacology studies have confirmed the beta-blocking activity of metoprolol in man, as shown by (1) reduction in heart rate and cardiac output at rest and upon exercise, (2) reduction of systolic blood pressure upon exercise, (3) inhibition of isoproterenol-induced tachycardia, and (4) reduction of reflex orthostatic tachycardia. The relationship between plasma metoprolol levels and reduction in exercise heart rate is independent of the pharmaceutical formulation. Beta 1 -blocking effects in the range of 30-80% of the maximal effect (approximately 8 to 23% reduction in exercise heart rate) correspond to metoprolol plasma concentrations from 30 to 540 nmol/L.

The relative beta 1 -selectivity of metoprolol diminishes and blockade of beta 2 -adrenoceptors increases at plasma concentration above 300 nmol/L. Significant beta-blocking effect (as measured by reduction of exercise heart rate) occurs within 1 hour after oral administration, and its duration is dose-related. For example, a 50% reduction of the maximum effect after single oral doses of 20, 50, and 100 mg occurred at 3.3, 5.0, and 6.4 hours, respectively, in normal subjects.

After repeated oral dosages of 100 mg twice daily, a significant reduction in exercise systolic blood pressure was evident at 12 hours. When the drug was infused over a 10-minute period, in normal volunteers, maximum beta-blockade was achieved at approximately 20 minutes. Equivalent maximal beta-blocking effect is achieved with oral and intravenous doses in the ratio of approximately 2.5:1.

There is a linear relationship between the log of plasma levels and reduction of exercise heart rate. However, antihypertensive activity does not appear to be related to plasma levels. Because of variable plasma levels attained with a given dose and lack of a consistent relationship of antihypertensive activity to dose, selection of proper dosage requires individual titration.

In several studies of patients with acute myocardial infarction, intraveno…

🧬 Mechanism of Action ~1 min read ▾

📦 How Supplied / Storage and Handling 149 words ▾

16 HOW SUPPLIED/STORAGE AND HANDLING Metoprolol Tartrate Tablets, USP are available containing 25 mg or 50 mg of metoprolol tartrate, USP. The 25 mg tablets are white, film-coated, round, scored tablets debossed with M over 18 on one side of the tablet and scored on the other side. They are available as follows: Overbagged with 10 film-coated tablets per bag, NDC 55154-0279-0 The 50 mg tablets are pink, film-coated, round, scored tablets debossed with M over 32 on one side of the tablet and scored on the other side.

They are available as follows: Overbagged with 10 film-coated tablets per bag, NDC 55154-0278-0 WARNING: These Unit Dose packages are not child resistant and are Intended for Institutional Use Only. Keep this and all drugs out of the reach of children. Storage: Store at 20° to 25°C (68° to 77°F). [See USP Controlled Room Temperature.] Protect from light and moisture.

📋 Description 182 words ▾

11 DESCRIPTION Metoprolol tartrate tablets, USP contain metoprolol tartrate, a selective beta 1 -adrenoreceptor blocking agent. Metoprolol tartrate is (±)-1-(Isopropylamino)-3-[p-(2-methoxyethyl) phenoxy]-2-propanol L-(+)-tartrate (2:1) salt, and its structural formula is Metoprolol tartrate, USP is a white, crystalline powder with a molecular weight of 684.82. It is very soluble in water; freely soluble in methylene chloride, in chloroform, and in alcohol; slightly soluble in acetone; and insoluble in ether.

Metoprolol tartrate tablets, USP are available as 25 mg, 37.5 mg, 50 mg, 75 mg or 100 mg tablets for oral administration containing 25 mg, 37.5 mg, 50 mg, 75 mg or 100 mg metoprolol tartrate, respectively. Inactive Ingredients: anhydrous lactose, colloidal silicon dioxide, croscarmellose sodium, hypromellose, magnesium stearate, microcrystalline cellulose, polydextrose, polyethylene glycol, povidone, sodium lauryl sulfate, titanium dioxide and triacetin. The 37.5 mg tablets also contain FD&C Blue No.

2 Aluminum Lake. The 50 mg tablets also contain FD&C Blue No. 2 Aluminum Lake, D&C Red No.

27 Aluminum Lake and FD&C Red No. 40 Aluminum Lake. The 100 mg tablets also contain FD&C Blue No.

2 Aluminum Lake. Metoprolol Tartrate Structural Formula

💬 Information for Patients 190 words ▾

17 PATIENT COUNSELING INFORMATION Advise patients to take metoprolol tartrate tablets regularly and continuously, as directed, preferably with or immediately following meals. If a dose is missed, the patient should take only the next scheduled dose (without doubling it). Patients should not interrupt or discontinue metoprolol tartrate tablets without consulting the physician.

Advise patients (1) to avoid operating automobiles and machinery or engaging in other tasks requiring alertness until the patient’s response to therapy with metoprolol tartrate tablets has been determined; (2) to contact the physician if any difficulty in breathing occurs; (3) to inform the physician or dentist before any type of surgery that he or she is taking metoprolol tartrate tablets. Inform patients or caregivers that there is a risk of hypoglycemia when metoprolol tartrate tablets is given to patients who are fasting or who are vomiting.

Monitor for symptoms of hypoglycemia. Manufactured for: Mylan Pharmaceuticals Inc. Morgantown, WV 26505 U.S.A.

Manufactured in Australia by: ALPHAPHARM PTY LTD 15 Garnet Street Carole Park QLD 4300 Australia Distributed by: Safecor Health LLC Rockford, IL 61103 U.S.A. Distributed By: Cardinal Health Dublin, OH 43017 L61484230726 L61484150726 Revised: 1/2024 ALP:MTPL:R20 3247/4

Glossary — plain-language definitions of medical terms used in this label:

contraindicated: Should not be used in that situation, because the risk is considered too high.

additive effect: When two medicines that do the same thing are taken together and their effects add up to a larger combined effect.

adverse reaction: An unwanted or harmful effect that a medicine causes in the body.

Adverse Reactions: Unwanted or harmful effects that people experienced while taking a medicine, listed on its official label.

agranulocytosis: A severe drop in a certain type of infection-fighting white blood cell, greatly raising the risk of serious infections.

angina pectoris: Chest pain or a squeezing feeling that happens when the heart muscle does not get enough blood and oxygen.

animal reproduction studies: Tests in pregnant animals used to check whether a medicine might harm a developing baby.

atrioventricular block: A slowing or blocking of the electrical signals traveling between the heart's upper and lower chambers, which can slow the heartbeat.

AV block: A slowing or blocking of the electrical signals traveling between the heart's upper and lower chambers, which can slow the heartbeat.

bradycardia: A slower-than-normal heart rate, usually under 60 beats per minute.

bronchospasm: A sudden tightening of the muscles around the airways in the lungs that narrows them and makes breathing harder.

Clinical Pharmacology: The label section explaining how a medicine works in the body and how the body processes it.

Clinical Studies: The label section summarizing the research trials used to show that a medicine works and is acceptably safe.

constipation: Having bowel movements less often than usual, or passing stools that are hard, dry, and difficult to move.

Contraindications: A list of situations or health conditions in which a medicine should not be used because the chance of harm is too high.

crosses the placenta: When a substance passes from a pregnant mother's blood, through the placenta, and into the developing baby.

CYP2D6: A liver enzyme that breaks down many medicines; people inherit different versions, so it works faster in some and slower in others.

depression: A lasting low mood with loss of interest that affects everyday life.

diarrhea: Loose, watery bowel movements that happen more often than normal.

Dosage and Administration: The label section explaining how much of a medicine to use and how to take or give it.

Drug Interactions: The label section listing other medicines, foods, or substances that can change how a medicine works or raise the chance of side effects.

dyspnea: The medical word for shortness of breath, or the feeling that you cannot get enough air.

edema: Swelling caused by extra fluid trapped in the body's tissues.

efficacy: How well a treatment works under the controlled conditions of a clinical study.

Elimination: The overall removal of a medicine from the body by breaking it down and passing it out.

emotional lability: Rapid, exaggerated mood changes that shift quickly from one feeling to another.

estimated background risk: The normal chance that any pregnancy will have a birth defect or problem, even without taking any medicine.

extended-release: A pill or capsule made to release its medicine slowly over many hours, so it can be taken less often; often labeled ER or XR.

extensive metabolizer: A person whose enzymes break down a medicine at the usual, expected rate.

flatulence: Passing gas from the bowel; feeling bloated or gassy.

Full Prescribing Information: The complete, detailed label for a prescription medicine that follows the summary highlights.

Half-life: The time it takes for the amount of medicine in the blood to drop by half.

heart failure: A condition in which the heart cannot pump blood as well as it should, causing tiredness, breathlessness, and swelling.

hemodialysis: A treatment that uses a machine to filter waste and extra fluid from the blood when the kidneys cannot.

hemorrhage: Bleeding, especially heavy or uncontrolled bleeding, either inside the body or from an outside wound.

hepatic impairment: Reduced liver function, meaning the liver does not work as well as normal at processing substances, including medicines.

How Supplied/Storage and Handling: The label section describing the forms and strengths a medicine comes in and how to store it properly.

hypersensitivity: An overreaction of the body's defense system to a substance, causing symptoms such as rash, swelling, or trouble breathing.

hypertension: Blood pressure that stays higher than normal, commonly called high blood pressure.

hypoglycemia: Low blood sugar, when the amount of glucose (sugar) in the blood drops below the normal range.

hypotension: Blood pressure that is lower than normal, which can cause dizziness or fainting.

hypoxia: A condition in which the body's tissues do not get enough oxygen.

immediate-release: A standard pill or capsule that releases all of its medicine soon after it is swallowed.

Indications and Usage: The label section stating which medical conditions the FDA has officially approved the medicine to treat, prevent, or manage.

infusion: Slowly delivering fluid or medicine into a vein over a period of time, usually through a drip.

inhibitor: A substance that blocks an enzyme or transporter, which can raise the levels of drugs it normally handles.

insomnia: Trouble falling asleep, staying asleep, or getting restful sleep.

intrauterine growth restriction: When a baby grows more slowly than expected in the womb and is smaller than normal at birth.

intravenous: Given directly into a vein through a needle or thin tube; often written as IV.

ischemia: Reduced blood flow to a part of the body, so that area does not get enough oxygen.

lactation: The making and release of milk from a mother's breasts after giving birth.

laryngospasm: A sudden spasm of the vocal cords that briefly closes the voice box and makes it hard to breathe or speak.

Mechanism of Action: How a medicine produces its effect in the body, described at the level of cells or body chemistry.

monotherapy: Treatment using a single medicine by itself.

myocardial infarction: The medical term for a heart attack, when blood flow to part of the heart muscle is blocked.

NDC: A unique number that identifies a specific medicine, its maker, strength, and package size.

neonatal: Relating to a newborn baby during its first four weeks of life.

Overdosage: The label section describing what can happen if too much of a medicine is taken and how it may be treated.

palpitations: The feeling that your heart is racing, pounding, fluttering, or skipping beats.

Patient Counseling Information: The label section telling health professionals what to explain to patients about using a medicine safely.

peripheral edema: Swelling, usually in the feet, ankles, or legs, caused by extra fluid building up in the tissues.

photosensitivity: An unusually strong skin reaction, such as burning or rash, after being in sunlight or other ultraviolet light.

placebo: An inactive treatment with no real medicine in it, such as a sugar pill, used for comparison in a study.

plasma concentration: The amount of medicine measured in the liquid part of the blood at a given time.

Prescribing Information: The official, detailed document approved by the FDA that tells health professionals how to use a prescription medicine.

preterm birth: Birth of a baby earlier than usual, before 37 weeks of pregnancy.

pruritus: Itching of the skin.

purpura: Purple spots or patches on the skin caused by bleeding just under the surface.

randomized: Assigned to a treatment group purely by chance, like a coin flip, so the groups being compared start out fair and similar.

rebound: The return of symptoms, sometimes worse than before, after a medicine that was controlling them is stopped.

receptor: A special docking spot on a cell that a medicine or natural body chemical attaches to in order to trigger an effect.

relative risk: A number comparing the chance of an event in one group with the chance of that same event in another group.

respiratory depression: Breathing that becomes too slow or too shallow to move enough air, so the body may not get enough oxygen.

syncope: The medical term for fainting, a brief loss of consciousness from a temporary drop in blood flow to the brain.

tachycardia: A faster-than-normal heart rate, usually over 100 beats per minute.

tinnitus: Ringing, buzzing, or other noise in the ears that is not coming from an outside sound.

titration: Slowly adjusting a medicine's dose up or down in small steps to find the amount that works best with the fewest side effects.

tolerance: When the body gets used to a medicine over time, so a larger dose is needed to get the same effect.

Use in Specific Populations: The label section describing how a medicine affects particular groups, such as pregnant people, children, or older adults.

vasodilation: Widening of blood vessels, which lets more blood flow through and can lower blood pressure.

vertigo: A spinning sensation that makes you feel like you or the room around you is moving.

Warnings and Precautions: The label section describing serious risks to know about and safety steps to follow while using a medicine.

wheezing: A high-pitched whistling sound made while breathing, usually when the airways are narrowed.

withdrawal: Uncomfortable physical or mental symptoms that appear when a medicine the body has gotten used to is reduced or stopped.

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

← 55154-0277-00 · Cardinal 55154-0279-00 · Cardinal →

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.

Metoprolol Tartrate 50 mg Tablet, Film Coated

🆔 Identity & classification

🏷️ RxNorm drug class

🏭 Manufacturer & labeler

🩺 Clinical

Patient education

Supplement & herbal interactions

🧪 Inactive Ingredients / Excipients

Inactive ingredient FAQ

💲 Pricing

🔁 Therapeutic equivalents

⏳ Availability & generic status

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

🔬 Reported adverse events (FAERS)

Top reported reactions

Reporter sex

Serious outcomes

📦 Packaging — all sizes for this product

🧭 About this NDC listing & data coverage

Questions about this listing

📄 Full prescribing information FDA SPL

12 CLINICAL PHARMACOLOGY

🔗 Related NDC lookups