Famotidine (Pepcid) — Uses, Side Effects & Interactions
Famotidine is a medication in the H2 Receptor Antagonist class, sold under the brand name Pepcid. It is one of the most commonly prescribed medications in the United States. Below you'll find key information about its uses, side effects, and important drug interactions.
What Is Famotidine Used For?
Famotidine is prescribed to treat the following conditions:
Your doctor may also prescribe famotidine for other conditions not listed here. Always take this medication exactly as prescribed and discuss any questions with your healthcare provider.
Common Side Effects
Most people taking famotidine may experience some of the following side effects, which are generally mild and may improve as your body adjusts:
- headache
- dizziness
- constipation
- diarrhea
Serious Side Effects — Contact Your Doctor Immediately
- QT prolongation (rare)
- blood disorders (rare)
If you experience any of these serious side effects, stop taking the medication and seek medical attention right away.
Drug Interactions
Famotidine can interact with other medications and substances, potentially changing how the drug works or increasing the risk of side effects. Important interactions include:
- atazanavir
- dasatinib
- cefditoren
Always inform your doctor and pharmacist about all medications, supplements, and herbal products you are taking. GProv's AI health navigator, Appi, can help you check for potential drug interactions.
Important Safety Information
This page provides general educational information about famotidine and is not a substitute for professional medical advice. Do not start, stop, or change the dosage of any medication without consulting your healthcare provider. If you have questions about whether famotidine is right for you, speak with your doctor or pharmacist.
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