Famotidine

Famotidine is a h2 receptor antagonist (h2 blocker) medicine available in Bangladesh under many brand names. Below are its uses, side effects and precautions — and every brand with its current price.

Famotidine is indicated for:

• Heartburn and acid indigestion — relief and prevention of occasional symptoms
• Gastro-oesophageal reflux disease (GERD) — mild to moderate cases
• Duodenal and gastric ulcers — treatment and prevention of recurrence
• Zollinger-Ellison syndrome — conditions of acid hypersecretion
• Stress ulcer and aspiration prophylaxis — in selected hospital settings

It is sometimes preferred when a milder, shorter-acting acid reducer is enough, or for night-time symptom control. A registered doctor should confirm which indication applies to you.

Famotidine has a good safety record. Possible side effects include:

• Common: headache, dizziness, constipation, diarrhoea
• Less common: dry mouth, nausea, fatigue, skin rash
• Rare: confusion or agitation (mainly in the elderly or those with kidney failure), irregular heartbeat, liver enzyme changes, low blood counts

Most effects are mild and temporary. Seek medical attention if you develop a fast or irregular heartbeat, marked confusion, easy bruising, yellowing of the skin, or signs of allergy such as swelling and breathing difficulty.

Precautions while using Famotidine:

• Kidney impairment: doses usually need reduction; elderly patients with poor kidney function are prone to confusion
• Persistent heartburn despite 2 weeks of treatment, difficulty swallowing, vomiting blood or black stools require medical evaluation — acid reducers can mask stomach cancer symptoms
• Avoid smoking, alcohol, and late heavy meals, which counteract acid control
• Do not combine with other H2 blockers; tell your doctor if you also use a PPI
• Use the lowest dose that controls symptoms, for the shortest necessary time

Famotidine has fewer drug interactions than older H2 blockers like cimetidine, but note:

• Acid-dependent drugs: reduced absorption of ketoconazole, itraconazole, atazanavir, rilpivirine and some iron salts
• Antacids: may slightly reduce famotidine absorption — separate by 1-2 hours if possible
• Tizanidine: levels may increase with strong acid suppression combinations
• Probenecid: can raise famotidine blood levels

Famotidine does not significantly inhibit liver CYP enzymes, which is one reason doctors choose it. Still, list all your medicines to your doctor and pharmacist.

Famotidine should not be taken if:

• You have known hypersensitivity to famotidine, other H2-receptor antagonists, or any ingredient of the
• Cross-sensitivity exists between H2 blockers, so a previous reaction to ranitidine or similar drugs matters

Use with caution and medical guidance in moderate to severe kidney disease (dose adjustment needed), in the elderly, and in patients with long QT syndrome where high doses are used. If alarm symptoms are present, endoscopic evaluation should come before prolonged acid suppression.

Pregnancy: Famotidine has been used in pregnancy for many years without evidence of harm in available studies, and H2 blockers are often considered acceptable for pregnancy heartburn when lifestyle measures fail. Even so, it should be taken in pregnancy only on a doctor's advice, at the lowest effective dose.

Lactation: Famotidine passes into breast milk in small amounts, generally regarded as compatible with breastfeeding at usual doses; among H2 blockers it transfers relatively less. Nursing mothers should still confirm with their doctor before regular use.

Store below 30°C in a dry place, protected from light and moisture. Keep the in its original packaging, tightly closed, and out of the reach and sight of children. If using a suspension form, follow the label about shaking and any post-reconstitution shelf life. Do not use after the expiry date on the pack.