Ohta Isan Intestinal Tablets
太田胃散整腸薬
Intestinal regulator with herbal ingredients (tablets)
Tablets 370 tablets
Soft stools, intestinal regulation (regulating bowel movements), constipation, and abdominal fullness
Active Ingredients (per 9 tablets (1 daily dose for adults))
Bifidobacterium 30 mg
Lactomin (Lactobacillus gasseri) 30 mg
Clostridium butyricum 90 mg
Geranium herb extract 102 mg (extracted from approx. 1,020 mg crude herb)
Mallotus bark extract 63 mg (extracted from approx. 504 mg crude herb)
Gentian powder 51 mg
Biodiastase 1000 60 mg
Inactive Ingredients
l-menthol, hydroxypropyl cellulose, lactose, anhydrous silicic acid, magnesium stearate, cellulose, maltitol syrup
Instructions for Use
- ✓Take after meals with water or lukewarm water.
- ✓Children should take this medicine under parental supervision.
| Age | Dose per use | Times per day |
|---|---|---|
| Adults (15 years and older) | 3 tablets | 3 times a day |
| 8–14 years | 2 tablets | 3 times a day |
| 5–7 years | 1 tablet | 3 times a day |
| Under 5 years | Do not take | — |
- ✓When first opening the bottle: remove and discard the cotton stuffing inside. (The stuffing prevents tablet breakage during shipping.)
- ✕Do not handle tablets with wet hands, and do not return wet tablets to the bottle, as moisture may cause discoloration.
- ⚠Consult a doctor, pharmacist, or registered salesperson before taking this product if you:
- (1) Are under the care of a physician.
- (2) Have ever had an allergic reaction to a medicine or other product.
- ✓Stop taking immediately and consult a doctor, pharmacist, or registered salesperson — bringing this package insert with you — if any of the following symptoms appear after taking this product, as they may be side effects:
- Skin: Rash, redness, or itching
- ✓Stop taking and consult a doctor, pharmacist, or registered salesperson — bringing this package insert with you — if symptoms do not improve after about 2 weeks.
Additional Information
Tablets may have spots caused by the ingredients, but this does not affect quality.
Sources & Documents
- Japanese product page
- Japanese PDF
- Last verified: May 25, 2026
Related Medicines
For informational purposes only. Always consult a doctor or pharmacist before taking any medication.