Are Ranitidine and Famotidine the same drug class?

Yes — both belong to ATC class A02B, meaning similar pharmacological action. Differences are in dose, formulation, and side-effect profile.

Can I switch from Ranitidine to Famotidine?

Switching between drugs requires medical supervision. Even within the same therapeutic class, dose conversions, washout periods, and overlap protocols must be followed to avoid efficacy loss or adverse events. Always consult your prescribing physician.

Does Ranitidine or Famotidine have more side effects?

Side-effect profiles differ between drugs. Both Ranitidine and Famotidine have documented adverse-effect lists in their official prescribing information. Compare the side effects sections on each individual drug page for the full breakdown.

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This information is for educational purposes only. It is not intended as medical advice. Always consult a qualified healthcare professional.

Ranitidine vs Famotidine

Q: What is the difference between Ranitidine and Famotidine?

Ranitidine (INN: Ranitidine, ATC A02BA 2) and Famotidine (INN: FAMOTIDINE, ATC A02BA03) differ in active substance, indications, and safety profile. See the side-by-side table below for dosage, contraindications, and side effects.

Q: Can I take Ranitidine and Famotidine together?

Combination safety depends on both drugs' mechanisms and your health profile. Check interactions in our database and always consult your doctor or pharmacist before combining.

Q: Which is safer, Ranitidine or Famotidine?

Safety is patient-specific — both drugs are approved by regulatory authorities when used per label. The better choice depends on your condition, other medications, allergies, and comorbidities. Consult a healthcare professional for personalized advice.

Description, Dosage, Side Effects, Contraindications. Data from EMA, URPL, openFDA and other regulatory sources.

A02BA 2

Ranitidine

филмирани таблетки

e.g. ZANTAC INJECTION 25MG/ML (RANITIDINE)

	Ranitidine	Famotidine
Active Substances	Ranitidine	FAMOTIDINE
ATC Code	A02BA 2	A02BA03
Form	филмирани таблетки	TABLET, FILM COATED
Dosage	—	10 mg/1
Route	—	ORAL
Manufacturer	СОФАРМА АД	Safeway
Indications	This medication is an antacid, antireflux agent and antiulcerant, prescribed for peptic ulcer. It decreases the amount of acid made in the stomach.	This medication is a histamine (H2-receptor antagonist), prescribed for ulcer. It works by decreasing the amount of stomach acid.
Side Effects	Headache, constipation, nausea, abdominal pain and dizziness.	Body as a whole - Fever and fatigue. Heart - Palpitations and abnormal heart beat. Gastrointestinal - Vomiting, nausea, jaundice, elevated liver enzymes level, abdominal discomfort and dry mouth. Blood - Decreased white blood cells and platelets count. Hypersensitivity - Rash and swelling. Musculoskeletal - Muscle cramps and muscle pain. Central Nervous system - Confusion, seizures, hallucinations, depression, anxiety and sleep disorders. Skin - Acne, dry and itchy skin. Eye and ENT - Ringing in the ear and taste disorder.

FAQ

What is the difference between Ranitidine and Famotidine?

Ranitidine (INN: Ranitidine, ATC A02BA 2) and Famotidine (INN: FAMOTIDINE, ATC A02BA03) differ in active substance, indications, and safety profile. The table above summarizes the clinical differences from regulatory documents.

Can I take Ranitidine and Famotidine together?

Combination safety depends on mechanisms and your health profile. Use our interactions checker and always consult your doctor or pharmacist before combining medications.

Which is safer, Ranitidine or Famotidine?

Both drugs are approved when used per label. Safety is patient-specific — the better choice depends on your condition, other medications, allergies, and comorbidities. Consult a healthcare professional for personalized advice.

This information is for educational purposes only. It is not intended as medical advice. Always consult a qualified healthcare professional.

Warnings	• Caution should be exercised in patients with history of porphyria, kidney or liver disease; during pregnancy and breastfeeding.	• Caution should be exercised in patients with history of kidney or liver problems, any allergy, who are taking other medications, elderly, during pregnancy and breastfeeding.