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.

ข้อมูลนี้มีวัตถุประสงค์เพื่อการศึกษาเท่านั้น ไม่ได้มีเจตนาเป็นคำแนะนำทางการแพทย์ ควรปรึกษาแพทย์หรือบุคลากรทางการแพทย์ที่มีคุณสมบัติเหมาะสมเสมอ

Ranitidine vs Famotidine

Q: What is the difference between Ranitidine and Famotidine?

Ranitidine (INN: RANITIDINE (RANITIDINE HYDROCHLORIDE), ATC A02BA02) 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.

รายละเอียด, ขนาดยา, ผลข้างเคียง, ข้อห้ามใช้. Data from EMA, URPL, openFDA and other regulatory sources.

A02BA02

Ranitidine

RANITIDINE (RANITIDINE HYDROCHLORIDE)

	Ranitidine	Famotidine
สารออกฤทธิ์	RANITIDINE (RANITIDINE HYDROCHLORIDE)	FAMOTIDINE
รหัส ATC	A02BA02	A02BA03
รูปแบบยา	—	TABLET, FILM COATED
ขนาดยา	—	10 mg/1
วิธีการให้ยา	—	ORAL
ผู้ผลิต	PHARMASCIENCE INC	Safeway

FAQ

What is the difference between Ranitidine and Famotidine?

Ranitidine (INN: RANITIDINE (RANITIDINE HYDROCHLORIDE), ATC A02BA02) 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.