Are Losartan and Valsartan the same drug class?

Yes — both belong to ATC class C09C, meaning similar pharmacological action. Differences are in dose, formulation, and side-effect profile.

Can I switch from Losartan to Valsartan?

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 Losartan or Valsartan have more side effects?

Side-effect profiles differ between drugs. Both Losartan and Valsartan 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

Losartan vs Valsartan

Q: What is the difference between Losartan and Valsartan?

Losartan (INN: LOSARTAN UR, ATC C09CA01) and Valsartan (INN: VALSARTAN, ATC C09CA03) 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 Losartan and Valsartan 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, Losartan or Valsartan?

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.

C09CA01

Losartan

LOSARTAN UR

e.g. LOSARTAN UR 12,5 mg INICIO COMPRIMIDOS RECUBIERTOS CON PELICULA EFG

	Losartan	Valsartan
สารออกฤทธิ์	LOSARTAN UR	VALSARTAN
รหัส ATC	C09CA01	C09CA03
รูปแบบยา	—	TABLET
ขนาดยา	—	320MG
วิธีการให้ยา	—	ORAL
ผู้ผลิต	Aristo Pharma Iberia S.L.	NOVARTIS PHARMACEUTICALS CORP

FAQ

What is the difference between Losartan and Valsartan?

Losartan (INN: LOSARTAN UR, ATC C09CA01) and Valsartan (INN: VALSARTAN, ATC C09CA03) differ in active substance, indications, and safety profile. The table above summarizes the clinical differences from regulatory documents.

Can I take Losartan and Valsartan 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, Losartan or Valsartan?

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.