medicines
Laxative
下剤 (Gezai)
A medication used to relieve constipation by stimulating bowel movements or softening stool. Types available in Japan include bulk-forming agents (psyllium), stool softeners, osmotic laxatives (magnesium oxide, lactulose), and stimulant laxatives (senna, bisacodyl). Magnesium oxide is the most commonly prescribed laxative in Japan. Many mild formulations are available without a prescription at pharmacies.
Magnesium oxide (Magsent) is a first-line prescription laxative in Japan and is especially common in elderly care settings due to its safety profile.
In 9 languages
| Language | Term |
|---|---|
| English | Laxative |
| Japanese (日本語) | 下剤 |
| Chinese (中文) | 泻药 |
| Korean (한국어) | 변비약 |
| Portuguese | Laxante |
| Spanish | Laxante |
| Filipino | Laksatibo |
| Thai | ยาระบาย |
| Vietnamese | Thuốc nhuận tràng |
| Romanization | Gezai |
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Read the guide →Last reviewed: September 2026