FAMOTIDINE 40 mg Tablet, Film Coated, 90-count
Other active recalls for Famotidine (different manufacturers) — 1 · tap to view
🆔 Identity & classification
Where does this data come from?
🏷️ RxNorm drug class
This medicine belongs to the Histamine-2 Receptor Antagonist class.
Where does this data come from?
🏭 Manufacturer & labeler
Where does this data come from?
🩺 Clinical
- Famotidine is an acid reducer. Over-the-counter products like Acid Reducer or Calmicid AC are mainly for relieving or preventing heartburn and indigestion. Prescription famotidine...
- Swallow the tablet whole with a full glass of water — don't chew it. For heartburn relief, you can take it when symptoms start. To prevent heartburn before a meal, take it 10 to 60...
- Most people do just fine with famotidine. The most common things that come up are headache, dizziness, and constipation. Some people notice nausea or stomach discomfort too. These...
- What side effects should I actually expect?
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Famotidine — tap one for details:
Famotidine may be associated with lower levels of 6 nutrients — worth a chat with your pharmacist, not a cause for alarm.
Where does this data come from?
Ask a licensed pharmacist directly — free, answered by our team.
💊 What it looks like
Where does this data come from?
🧪 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.
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UNII 9XZ8H6N6OH
A plant-based cellulose derivative used as a binder to hold tablet ingredients together, a thickener in liquids, and a coating agent to control how fast the medicine dissolves.
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UNII 3NXW29V3WO
Hypromellose is a plant-based thickener made from cellulose. It's used in medicines as a binder to hold ingredients together, a coating for tablets, and a thickener for liquids.
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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.
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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.
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UNII 3WJQ0SDW1A
Polyethylene glycol is a synthetic liquid or solid polymer used in medicines as a solvent, lubricant, and humectant. It helps dissolve active ingredients, reduces friction during manufacturing, and retains moisture in the final product.
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UNII H8AV0SQX4D
A modified starch derived from potato or corn starch. It absorbs water quickly and helps tablets or capsules break apart and dissolve in the stomach, acting as a disintegrant to ensure the medicine releases its active ingredients properly.
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UNII O8232NY3SJ
A plant-based carbohydrate derived from corn kernels. It acts as a filler to add bulk, a binder to hold ingredients together, and a disintegrant to help the tablet break apart in your stomach for absorption.
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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.
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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.
9 inactive ingredients listed in the exact product block matched to this NDC.
Where does this data come from?
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?
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Can inactive ingredients matter?
💲 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. | |
Where does this data come from?
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Famotidine 40 mg 31722-0018-01 | Camber | 100 tablets | $0.049 | AB | Availability likely | — |
| Famotidine 40 mg 68001-0398-00 | BluePoint | 100 tablets | $0.049 | AB | Availability likely | — |
| Famotidine 40 mg 67877-0843-01 | Ascend | 100 tablets | $0.049 | AB | Discontinued | — |
| Famotidine 40 mg 70710-1684-00 | Zydus | 1000 tablets | $0.049 | AB | Availability likely | — |
| Famotidine 40 mg 61442-0122-01 | Carlsbad | 2400 tablets | $0.049 | AB | Availability likely | — |
| famotidine 40 mg 62135-0808-90 | Chartwell | 90 tablets | $0.049 | AB | Availability likely | — |
| Famotidine 40 mg 65862-0860-01 | Aurobindo | 100 tablets | $0.049 | AB | Availability likely | — |
| Famotidine 40 mg 69367-0401-10 | Westminster | 1000 tablets | $0.049 | AB | Availability likely | — |
| Famotidine 40 mg 50268-0304-15 | AvPAK | 50 tablets | $0.049 | AB | Availability likely | — |
| Famotidine 40 mg 70756-0052-11 | Lifestar | 100 tablets | $0.049 | AB | Availability likely | — |
| Famotidine 40 mg 72205-0146-05 | Novadoz | 500 tablets | $0.049 | AB | Availability likely | — |
| Famotidine 40 mg 00172-5729-60 | Teva | 100 tablets | $0.049 | AB | Availability likely | — |
| Famotidine 40 mg 64980-0624-01 | Rising | 100 tablets | $0.049 | AB | Availability likely | — |
| Famotidine 40 mg 67877-0889-01 | Ascend | 100 tablets | $0.049 | AB | Availability likely | — |
| Famotidine 40 mg 55111-0120-01 | Dr.Reddy's | 100 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 63187-0908-30 | Proficient | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 71205-0257-30 | Proficient | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 71205-0634-30 | Proficient | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 72865-0215-01 | XLCare | 100 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 50090-1432-00 | A-S | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 50090-6790-00 | A-S | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 50090-6916-00 | A-S | 90 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 60760-0736-60 | St. | 60 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 71205-0781-30 | Proficient | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 50090-7981-00 | A-S | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 68788-8518-03 | Preferred | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 71335-2527-01 | Bryant | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 43063-0533-30 | PD-Rx | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 60760-0843-07 | ST. | 7 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 72789-0453-30 | PD-Rx | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 10267-5690-01 | Contract | 100 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 63629-2782-01 | Bryant | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 68071-3584-03 | NuCare | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 72789-0345-30 | PD-Rx | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 76420-0713-01 | Asclemed | 100 tablets | — | AB | FDA listed | — |
| Pepcid 40 mg 00187-4440-10 | Bausch | 100 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 46708-0294-10 | Alembic | 100 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 71335-9724-01 | Bryant | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 72162-1737-00 | Bryant | 1000 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 82804-0228-30 | Proficient | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 50090-7966-00 | A-S | 90 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 51407-0684-01 | Golden | 3600 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 72189-0207-30 | direct | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 43063-0696-30 | PD-Rx | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 51655-0102-26 | Northwind | 90 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 63629-2014-01 | Bryant | 1000 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 70771-1703-00 | Zydus | 1000 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 71335-0231-01 | Bryant | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 71335-9615-01 | Bryant | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 82804-0981-00 | Proficient | 100 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 00615-8559-05 | NCS | 15 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 50090-7982-00 | A-S | 90 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 62332-0002-10 | Alembic | 100 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 63629-2015-01 | Bryant | 100 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 68071-3521-03 | NuCare | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 68071-4197-03 | NuCare | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 70518-4084-01 | REMEDYREPACK | 90 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 60760-0937-07 | ST. | 7 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 68788-8733-03 | Preferred | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 70518-4394-00 | REMEDYREPACK | 90 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 72789-0427-90 | PD-Rx | 90 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 50090-7196-00 | A-S | 90 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 68071-3413-03 | NuCare | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 71335-2442-01 | Bryant | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 85766-0222-01 | Sportpharm | 100 tablets | — | AB | FDA listed | — |
| Famotidine 40 mgthis 85534-0092-02 | HAWAII | 90 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 68788-4144-03 | Preferred | 30 tablets | — | AB | FDA listed | — |
| Famotidine 40 mg 72789-0589-30 | PD-Rx | 30 tablets | — | AB | FDA listed | — |
Where does this data come from?
⏳ Availability & generic status
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?
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 85534-0092-00 | 30 TABLET, FILM COATED in 1 BOTTLE (85534-0092-0) | 2026-07-13 | Active |
| 85534-0092-01 | 60 TABLET, FILM COATED in 1 BOTTLE (85534-0092-1) | 2026-07-13 | Active |
| 85534-0092-02 You're viewing this | 90 TABLET, FILM COATED in 1 BOTTLE (85534-0092-2) | 2026-07-13 | Active |
| 85534-0092-03 | 120 TABLET, FILM COATED in 1 BOTTLE (85534-0092-3) | 2026-07-13 | Active |
You're viewing one of 4 pack sizes for this product.
Pack size FAQ
What quantity is in NDC 85534-0092-02?
What is the difference between NDC 85534-0092-02 and NDC 85534-0092-00?
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🧭 About this NDC listing & data coverage
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. |
Questions about this listing
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📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
1 INDICATIONS & USAGE Famotidine tablets are indicated in adult and pediatric patients 40 kg and greater for the treatment of: active duodenal ulcer (DU). active gastric ulcer (GU). symptomatic nonerosive gastroesophageal reflux disease (GERD). erosive esophagitis due to GERD, diagnosed by biopsy. Famotidine tablets are indicated in adults for the: treatment of pathological hypersecretory conditions (e.g., Zollinger-Ellison syndrome, multiple endocrine neoplasias). reduction of the risk of duodenal ulcer recurrence.
Famotidine is a histamine-2 (H2) receptor antagonist indicated (1) : In adult and pediatric patients 40 kg and greater for the treatment of: active duodenal ulcer (DU). active gastric ulcer. symptomatic nonerosive gastroesophageal reflux disease (GERD). erosive esophagitis due to GERD, diagnosed by biopsy. In adults for the: treatment of pathological hypersecretory conditions (e.g., Zollinger-Ellison syndrome, multiple endocrine neoplasias). reduction of the risk of DU recurrence.
⏱️ Dosage and Administration ▾
2 DOSAGE & ADMINISTRATION Indication Recommended Dosage ( 2.1 ) Adult and Pediatric Patients 40 kg and greater Active DU 40 mg once daily; or 20 mg twice daily Active Gastric Ulcer 40 mg once daily GERD 20 mg twice daily Erosive Esophagitis 20 mg twice daily; or 40 mg twice daily Adults Pathological Hypersecretory Conditions 20 mg every 6 hours; adjust to patient needs; maximum 160 mg every 6 hours Risk Reduction of DU Recurrence 20 mg once daily See full prescribing information for complete dosing information, including dosing in renal impairment, and recommended treatment duration.
( 2.1, 2.2 ) Administration ( 2.3 ): Take once daily before bedtime or twice daily in the morning and before bedtime with or without food.
2.1Recommended Dosage Table 1 shows the recommended dosage of famotidine 20 mg and 40 mg tablets in adult and pediatric patients weighing 40 kg and greater with normal renal function. The use of famotidine 20 mg and 40 mg tablets is not recommended in pediatric patients weighing less than 40 kg because the lowest available strength (20 mg) exceeds the recommended dose for these patients . Use another famotidine formulation for pediatric patients weighing less than 40 kg.
Table 1: Recommended Dosage and Duration of Famotidine Tablets in Adult and Pediatric Patients 40 kg and Greater with Normal Renal Function Indication Recommended Dosage Recommended Duration Active duodenal ulcer (DU) 40 mg once daily; or 20 mg twice daily a Up to 8 weeks b,c Active gastric ulcer 40 mg once daily Up to 8 weeks c Symptomatic nonerosive GERD 20 mg twice daily Up to 6 weeks c Erosive esophagitis diagnosed by endoscopy 20 mg twice daily; or 40 mg twice daily a Up to 12 weeks Pathological hypersecretory conditions d Starting dosage: 20 mg every 6 hours; adjust dosage to individual patient needs Maximum dosage 160 mg every 6 hours As clinically indicated Reduction of the risk of DU recurrence d 20 mg once daily 1 year c or as clinically indicated a Both dosages demonstrated effectiveness in clinical trials [see Clinical Studies ( 14 )] . b In clinical trials, the majority of patients healed within 4 weeks.
For patients who do not heal after 4 weeks, consider an additional 2 to 4 weeks of treatment [see Clinical Studies ( 14.1 )]. C Longer treatment durations have not been studied in clinical trials [see Clinical Studies ( 14.1 , 14.2 , 14.3 )] . d In pediatric patients, the safety and effectiveness of famotidine tablets have not been established for the reduction of the risk of duodenal ulcer recurrence or for treatment of pathological hypersecretory conditions [see Use in Specific Populations ( 8.4 )] .
2.2Dosage in Renal Impairment Dosage adjustments of famotidine tablets are recommended for patients with moderate to severe renal impairment (creatinine clearance less than 60 mL/min) [see Use in Specific Populations ( 8.6 )] . Table 2 shows the recommended maximum dosage of famotidine 20 mg or 40 mg tablets for patients with renal impairment, by indication. Use the lowest effective dose.
Some dosage adjustments may require switching to other formulations of famotidine (e.g., oral suspension, lower dose tablet). Table 2: Recommended Maximum Dosage of Famotidine Tablets in Adult and Pediatric Patients 40 kg and Greater with Moderate and Severe Renal Impairment Indication Recommended Maximum Dosages Creatinine clearance 30 to 60 mL/minute Creatinine clearance less than 30 mL/minute Active duodenal ulcer (DU) 20 mg once daily; or 40 mg every other day 20 mg every other day a Active gastric ulcer 20 mg once daily; or 40 mg every other day 20 mg every other day a Symptomatic nonerosive GERD 20 mg once daily 20 mg every other day a Erosive esophagitis diagnosed by endoscopy b 20 mg once daily; or 40 mg every other day b 20 mg every other day a,b 40 mg once daily b 20 mg once daily b Pathological hypersecretory conditions c Avoid use d Reduction of the risk of DU recurrence c 20 mg every other day a (see footnote) e a An alternate dosage…
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS & STRENGTHS 20 mg tablets: round, white to off-white film-coated tablets, debossed with “V” on one side and “15” on the other side. 40 mg tablets: round, white to off-white film-coated tablets, debossed with “V” on one side and “45” on the other side. Tablets: 20 mg, 40 mg ( 3 )
⛔ Contraindications ▾
4 CONTRAINDICATIONS Famotidine tablets are contraindicated in patients with a history of serious hypersensitivity reactions (e.g., anaphylaxis) to famotidine or other histamine-2 (H2) receptor antagonists. History of serious hypersensitivity reactions (e.g., anaphylaxis) to famotidine or other H 2 receptor antagonists. (4)
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Central Nervous System (CNS) Adverse Reactions: Elderly patients and patients with renal impairment at increased risk; reduce the dosage. ( 2.2 , 5.1 , 8.5 , 8.6 ) GI Malignancy: Absence of GI symptoms does not preclude the presence of gastric malignancy; evaluate prior to initiating therapy. ( 5.2 )
5.1Central Nervous System Adverse Reactions Central nervous system (CNS) adverse reactions, including confusion, delirium, hallucinations, disorientation, agitation, seizures, and lethargy, have been reported in elderly patients and patients with moderate and severe renal impairment treated with famotidine. Since famotidine blood levels are higher in patients with renal impairment than in patients with normal renal function, dosage adjustments are recommended in patients with renal impairment [see Dosage and Administration ( 2.2 ), Clinical Pharmacology ( 12.3 )].
5.2Concurrent Gastric Malignancy In adults, symptomatic response to therapy with famotidine does not preclude the presence of gastric malignancy. Consider evaluation for gastric malignancy in adult patients who have a suboptimal response or an early symptomatic relapse after completing treatment with famotidine.
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS The most common adverse reactions are: headache, dizziness, constipation, and diarrhea. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Ascend Laboratories, LLC at 1-877-272-7901 or F DA at 1-800-FDA-1088 or www.fda.gov/medwatch.
6.1Clinical Trial 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. Famotidine was studied in 7 US and international placebo- and active-controlled trials in approximately 2500 patients [see Clinical Studies ( 14 )] . A total of 1442 patients were treated with famotidine, including 302 treated with 40 mg twice daily, 456 treated with 20 mg twice daily, 461 treated with 40 mg once daily, and 396 treated with 20 mg once daily.
The population was 17-91 years old, fairly well distributed between gender and race; however, the predominant race treated was Caucasian. The following adverse reactions occurred in greater than or equal to 1% of famotidine-treated patients: headache, dizziness and constipation. The following other adverse reactions were reported in less than 1% of patients in clinical trials: Body as a Whole: fever, asthenia, fatigue Cardiovascular: palpitations Gastrointestinal: elevated liver enzymes, vomiting, nausea, abdominal discomfort, anorexia, dry mouth Hematologic: thrombocytopenia Hypersensitivity: orbital edema, rash, conjunctival injection, bronchospasm Musculoskeletal: musculoskeletal pain, arthralgia Nervous System/Psychiatric: seizure, hallucinations, depression, anxiety, decreased libido, insomnia, somnolence Skin: pruritus, dry skin, flushing Special Senses: tinnitus, taste disorder Other: impotence
6.2Postmarketing Experience The following adverse reactions have been identified during post-approval use of famotidine. 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. Cardiovascular: arrhythmia, AV block, prolonged QT interval Gastrointestinal: cholestatic jaundice, hepatitis Hematologic: agranulocytosis, pancytopenia, leukopenia Hypersensitivity: anaphylaxis, angioedema, facial edema, urticaria Musculoskeletal: rhabdomyolysis, muscle cramps Nervous System/Psychiatric: confusion, agitation, paresthesia Respiratory: interstitial pneumonia Skin: toxic epidermal necrolysis/Stevens-Johnson syndrome
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS Drugs Dependent on Gastric pH for Absorption: Systemic exposure of the concomitant drug may be significantly reduced leading to loss of efficacy. See full prescribing information for a list of interacting drugs. ( 7.1 ) Tizanidine (CYP1A2) Substrate: Potential for substantial increases in blood concentrations of tizanidine resulting in hypotension, bradycardia or excessive drowsiness; avoid concomitant use, if possible. (7.2)
7.1Drugs Dependent on Gastric pH for Absorption Famotidine can reduce the absorption of other drugs, due to its effect on reducing intragastric acidity, leading to loss of efficacy of the concomitant drug. Concomitant administration of famotidine with dasatinib, delavirdine mesylate, cefditoren, and fosamprenavir is not recommended. See the prescribing information for other drugs dependent on gastric pH for absorption for administration instructions, including atazanavir, erlotinib, ketoconazole, itraconazole, ledipasvir/sofosbuvir, nilotinib, and rilpivirine.
7.2Tizanidine (CYP1A2 Substrate) Although not studied clinically, famotidine is considered a weak CYP1A2 inhibitor and may lead to substantial increases in blood concentrations of tizanidine, a CYP1A2 substrate. Avoid concomitant use with famotidine. If concomitant use is necessary, monitor for hypotension, bradycardia or excessive drowsiness. Refer to the full prescribing information for tizanidine.
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS Geriatric Use: Use the lowest effective dose for an elderly patient and monitor renal function. ( 2.2 , 5.1 , 8.5 ) Renal Impairment: Risk of CNS adverse reactions and QT prolongation in patients with moderate and severe renal impairment; reduce the dosage. ( 2.2 , 8.6 )
8.1Pregnancy Risk Summary Available data with H2-receptor antagonists, including famotidine, in pregnant women are insufficient to establish a drug-associated risk of major birth defects, miscarriage or adverse maternal or fetal outcomes. In animal reproduction studies, no adverse development effects were observed with oral administration of famotidine at doses up to approximately 243 and 122 times, respectively, the recommended human dose of 80 mg per day for the treatment of erosive esophagitis (see Data) . The estimated background risk for major birth defects and miscarriage for the indicated population is unknown.
All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Data Animal Data Reproductive studies have been performed in rats and rabbits at oral doses of up to 2000 and 500 mg/kg/day, respectively, and in both species at intravenous doses of up to 200 mg/kg/day, and have revealed no significant evidence of impaired fertility or harm to the fetus due to famotidine.
While no direct fetotoxic effects have been observed, sporadic abortions occurring only in mothers displaying marked decreased food intake were seen in some rabbits at oral doses of 200 mg/kg/day (about 49 times the recommended human dose of 80 mg per day, based on body surface area) or higher. There are, however, no adequate or well-controlled studies in pregnant women. Because animal reproductive studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.
8.2Lactation Risk Summary There are limited data available on the presence of famotidine in human breast milk. There were no effects on the breastfed infant. There are no data on famotidine effects on milk production.
Famotidine is present in the milk of lactating rats (see Data) . The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for famotidine and any potential adverse effects on the breastfed child from famotidine or from the underlying maternal condition. Data Animal Data Transient growth depression was observed in young rats suckling from mothers treated with maternotoxic doses of famotidine at least 600 times the usual human dose.
8.4Pediatric Use The safety and effectiveness of famotidine have been established in pediatric patients for the treatment of peptic ulcer disease (i.e., duodenal ulcer, gastric ulcer) and GERD (i.e., symptomatic nonerosive GERD, erosive esophagitis as diagnosed by endoscopy). The use of famotidine and the recommended dosage of famotidine in these pediatric patients is supported by evidence from adequate and well-controlled studies of famotidine in adults and published pharmacokinetic and pharmacodynamic data in pediatric patients [see Dosage and Administration ( 2.1 ), Clinical Pharmacology ( 12.2 , 12.3 )] .
In pediatric patients, the safety and effectiveness for the treatment of pathological hypersecretory conditions and reduction of risk of duodenal ulcer recurrence have not been established. Famotidine 20 and 40 mg tablets are not recommended for use in pediatric patients weighing less than 40 kg because these tablet strengths exceed the recommended dose for these patients [see Dosage and Administration ( 2.1 )] . For pediatric patients weighing less than 40 kg, consider another famotidine formulation (e.g., oral suspension, lower dose tablet).
8.5Geriatric Use Of the 1442 famotidine-treated patients in clinical studies, approximately 10% were 65 an…
🤰 Pregnancy ▾
8.1Pregnancy Risk Summary Available data with H2-receptor antagonists, including famotidine, in pregnant women are insufficient to establish a drug-associated risk of major birth defects, miscarriage or adverse maternal or fetal outcomes. In animal reproduction studies, no adverse development effects were observed with oral administration of famotidine at doses up to approximately 243 and 122 times, respectively, the recommended human dose of 80 mg per day for the treatment of erosive esophagitis (see Data) . The estimated background risk for major birth defects and miscarriage for the indicated population is unknown.
All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Data Animal Data Reproductive studies have been performed in rats and rabbits at oral doses of up to 2000 and 500 mg/kg/day, respectively, and in both species at intravenous doses of up to 200 mg/kg/day, and have revealed no significant evidence of impaired fertility or harm to the fetus due to famotidine.
While no direct fetotoxic effects have been observed, sporadic abortions occurring only in mothers displaying marked decreased food intake were seen in some rabbits at oral doses of 200 mg/kg/day (about 49 times the recommended human dose of 80 mg per day, based on body surface area) or higher. There are, however, no adequate or well-controlled studies in pregnant women. Because animal reproductive studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.
🧒 Pediatric Use ▾
8.4Pediatric Use The safety and effectiveness of famotidine have been established in pediatric patients for the treatment of peptic ulcer disease (i.e., duodenal ulcer, gastric ulcer) and GERD (i.e., symptomatic nonerosive GERD, erosive esophagitis as diagnosed by endoscopy). The use of famotidine and the recommended dosage of famotidine in these pediatric patients is supported by evidence from adequate and well-controlled studies of famotidine in adults and published pharmacokinetic and pharmacodynamic data in pediatric patients [see Dosage and Administration ( 2.1 ), Clinical Pharmacology ( 12.2 , 12.3 )] .
In pediatric patients, the safety and effectiveness for the treatment of pathological hypersecretory conditions and reduction of risk of duodenal ulcer recurrence have not been established. Famotidine 20 and 40 mg tablets are not recommended for use in pediatric patients weighing less than 40 kg because these tablet strengths exceed the recommended dose for these patients [see Dosage and Administration ( 2.1 )] . For pediatric patients weighing less than 40 kg, consider another famotidine formulation (e.g., oral suspension, lower dose tablet).
🧓 Geriatric Use ▾
8.5Geriatric Use Of the 1442 famotidine-treated patients in clinical studies, approximately 10% were 65 and older. In these studies, no overall differences in safety or effectiveness were observed between elderly and younger patients. In postmarketing experience, CNS adverse reactions have been reported in elderly patients with and without renal impairment receiving famotidine [see Warnings and Precautions ( 5.1 )] .
Famotidine is known to be substantially excreted by the kidney, and the risk of adverse reactions to famotidine may be greater in elderly patients, particularly those with impaired renal function [see Use in Specific Populations ( 8.6 )] . In general, use the lowest effective dose of famotidine for an elderly patient and monitor renal function [see Dosage and Administration ( 2.2 )].
🆘 Overdosage ▾
10 OVERDOSAGE The types of adverse reactions in overdosage of famotidine are similar to the adverse reactions encountered with use of recommended dosages [see Adverse Reactions ( 6.1 )] . In the event of overdosage, treatment should be symptomatic and supportive. Unabsorbed material should be removed from the gastrointestinal tract, the patient should be monitored, and supportive therapy should be employed.
Due to low binding to plasma proteins, famotidine is eliminated by hemodialysis. There is limited experience on the usefulness of hemodialysis as a treatment for famotidine overdosage.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Famotidine is a competitive inhibitor of histamine-2 (H2) receptors. The primary clinically important pharmacologic activity of famotidine is inhibition of gastric secretion. Both the acid concentration and volume of gastric secretion are suppressed by famotidine, while changes in pepsin secretion are proportional to volume output.
12.2Pharmacodynamics Adults Famotidine inhibited both basal and nocturnal gastric secretion, as well as secretion stimulated by food and pentagastrin. After oral administration of famotidine, the onset of the antisecretory effect occurred within one hour; the maximum effect was dose-dependent, occurring within one to three hours. Duration of inhibition of secretion by doses of 20 mg and 40 mg was 10 to 12 hours.
Single evening oral doses of 20 mg and 40 mg inhibited basal and nocturnal acid secretion in all subjects; mean nocturnal gastric acid secretion was inhibited by 86% and 94%, respectively, for a period of at least 10 hours. The same doses given in the morning suppressed food-stimulated acid secretion in all subjects. The mean suppression was 76% and 84%, respectively, 3 to 5 hours after administration, and 25% and 30%, respectively, 8 to 10 hours after administration.
In some subjects who received the 20 mg dose, however, the antisecretory effect was dissipated within 6 to 8 hours. There was no cumulative effect with repeated doses. The nocturnal intragastric pH was raised by evening doses of 20 mg and 40 mg of famotidine to mean values of 5.0 and 6.4, respectively.
When famotidine was given after breakfast, the basal daytime interdigestive pH at 3 and 8 hours after 20 mg or 40 mg of famotidine was raised to about 5. Famotidine had little or no effect on fasting or postprandial serum gastrin levels. Gastric emptying and exocrine pancreatic function were not affected by famotidine.
In clinical pharmacology studies, systemic effects of famotidine in the CNS, cardiovascular, respiratory or endocrine systems were not noted. Also, no anti-androgenic effects were noted. Serum hormone levels, including prolactin, cortisol, thyroxine (T4), and testosterone, were not altered after treatment with famotidine.
Pediatric Patients Pharmacodynamics of famotidine, assessed by gastric pH, were evaluated in 5 pediatric patients 2 to 13 years of age using the sigmoid E max model. These data suggest that the relationship between serum concentration of famotidine and gastric acid suppression is similar to that observed in adults (see Table 3). Table 3: Serum Concentrations of Famotidine Associated with Gastric Acid Reduction in Famotidine-Treated Pediatric and Adult Patients a EC 50 (ng/mL) a Pediatric Patients 26 ± 13 Adults Healthy adult subjects 26.5 ±
10.3Adult patients with upper GI bleeding 18.7 ± 10.8 a Using the Sigmoid E max model, serum concentrations of famotidine associated with 50% maximum gastric acid reduction are presented as means ± SD. In a study examining the effect of famotidine on gastric pH and duration of acid suppression in pediatric patients, four pediatric patients ages 11 to 15 years of age using the oral formulation at a dose of 0.5 mg/kg, maintained a gastric pH above 5 for 13.5 ± 1.8 hours.
12.3Pharmacokinetics Absorption Famotidine is incompletely absorbed. The bioavailability of oral doses is 40 to 45%. Bioavailability may be slightly increased by food, or slightly decreased by antacids; however, these effects are of no clinical consequence.
Peak famotidine plasma levels occur in 1 to 3 hours. Plasma levels after multiple dosages are similar to those after single doses. Distribution Fifteen to 20% of famotidine in plasma is protein bound.
Elimination Metabolism Famotidine undergoes minimal first-pass metabolism. Twenty-five to 30% of an oral dose was recovered in the urine as unchanged compound. The only metabolite identified in humans is the S-oxide.
Excretion Famotidine has an elimination half-life of 2.5-3.5 hours. Famotidine…
🧬 Mechanism of Action ▾
12.1Mechanism of Action Famotidine is a competitive inhibitor of histamine-2 (H2) receptors. The primary clinically important pharmacologic activity of famotidine is inhibition of gastric secretion. Both the acid concentration and volume of gastric secretion are suppressed by famotidine, while changes in pepsin secretion are proportional to volume output.
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING Famotidine tablets are supplied as follows: 20 mg: Round, white to off-white film-coated tablets, debossed with “V” on one side and “15” on the other side. 30 tablets in 1 HDPE container NDC 85534-0091-0 (repackaged from NDC 67877-842-XX) 60 tablets in 1 HDPE container NDC 85534-0091-1 (repackaged from NDC 67877-842-XX) 90 tablets in 1 HDPE container NDC 85534-0091-2 (repackaged from NDC 67877-842-XX) 120 tablets in 1 HDPE container NDC 85534-0091-3 (repackaged from NDC 67877-842-XX) 40 mg: Round, white to off-white film-coated tablets, debossed with “V” on one side and “45” on the other side.
30 tablets in 1 HDPE container NDC 85534-0092-0 (repackaged from NDC 67877-889-XX) 60 tablets in 1 HDPE container NDC 85534-0092-1 (repackaged from NDC 67877-889-XX) 90 tablets in 1 HDPE container NDC 85534-0092-2 (repackaged from NDC 67877-889-XX) 120 tablets in 1 HDPE container NDC 85534-0092-3 (repackaged from NDC 67877-889-XX) Storage Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F) (See USP Controlled Room Temperature). Dispense in a USP tight, light-resistant container.
📋 Description ▾
11 DESCRIPTION The active ingredient in famotidine tablets is a histamine-2 (H2) receptor antagonist. Famotidine is N' -(aminosulfonyl)-3-[[[2-[(diaminomethylene)amino]-4-thiazolyl]methyl]thio]propanimidamide. The empirical formula of famotidine is C 8 H 15 N 7 O 2 S 3 and its molecular weight is 337.43.
Its structural formula is: Each famotidine tablet for oral administration contains either 20 mg or 40 mg of famotidine and the following inactive ingredients: hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, pregelatinized starch, sodium starch glycolate (type-A), hypromellose, titanium dioxide, triacetin, talc and macrogol. Famotidine is a white to pale yellow crystalline compound that is freely soluble in glacial acetic acid, slightly soluble in methanol, very slightly soluble in water, and practically insoluble in ethanol. famotidine-str
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION Central Nervous System (CNS) Adverse Reactions Advise elderly patients and those with moderate and severe renal impairment of the risk of CNS adverse reactions, including confusion, delirium, hallucinations, disorientation, agitation, seizures, and lethargy [see Warnings and Precautions ( 5.1 )] . Report symptoms immediately to a healthcare provider. QT Prolongation Advise patients with moderate and severe renal impairment of the risk of QT interval prolongation [see Use in Specific Populations ( 8.6 )] .
Report new cardiac symptoms, such as palpitations, fainting and dizziness or lightheadednessimmediately to a healthcare provider. Administration Advise patients: Take famotidine tablets once daily before bedtime or twice daily in the morning and before bedtime, as recommended. Famotidine tablets may be taken with or without food.
Famotidine tablets may be given with antacids. Distributed by: Hawaii Repack, Inc. 677 Ala Moana Blvd Ste 700, Honolulu, Hawaii-96813