Main useDepending on strength, used for fluid retention, SIADH-related low sodium, or selected polycystic kidney disease.A brief overview of Japanese approved uses. Check the PMDA label below for product-specific conditions.
- Japan product name
- サムスカOD錠7.5mg／15mg／30mg・サムスカ顆粒1%
- Brand
- Samsca
- Generic name
- Tolvaptan
- Japanese generic name
- トルバプタン
- Chinese name
- 托伐普坦
- Marketing authorization holder
- 大塚製薬株式会社
- Strengths
- 7.5 mg / 15 mg / 30 mg; granules 1%
- Dosage form
- OD tablet / granules
- Therapeutic area
- Cardiovascular
- Regulatory status
- Rx
- Label updated
- 2025-12-09
- TOKYO MEDI verified
- 2026-09-22
Official source
These links go directly to PMDA records for this Japanese product. Professional and patient-facing sources are separated.