Colac Tablets
コーラック
Class 2 — Available at drug stores
Drug Type
Stimulant laxative (tablets)
Form
Tablets 60 tablets
Indication
Chronic constipation and habitual constipation
Active Ingredients (per 2 tablets (1 dose))
Bisacodyl 10 mg
Inactive Ingredients
Sucrose, talc, acacia, castor oil, methacrylic acid copolymer S, methacrylic acid copolymer L, corn starch, magnesium stearate, glycerin, titanium dioxide, lactose, Red No. 3, carnauba wax, bleached beeswax, macrogol
Instructions for Use
- ✓Take without chewing, at bedtime or a few hours before the expected bowel movement, with water or lukewarm water.
| Age | Dose per use | Times per day |
|---|---|---|
| Adults (15 years and older) | 2 tablets | Once a day |
| Under 15 years | Do not take | — |
- ✓Taking on an empty stomach may speed up onset.
- ✕Do not take within 1 hour of taking antacids or drinking milk, as the enteric coating may dissolve prematurely.
- ✕Do not chew or crush tablets.
- ✓Remove tablets from the blister pack before taking. Do not swallow the blister pack, as the sharp edge may injure the esophageal mucosa.
- ✕Do not take other laxatives while taking this product.
- ✕Do not take more than the recommended dose.
- ⚠Consult a doctor, pharmacist, or registered salesperson before taking this product if you:
- (1) Are under the care of a physician.
- (2) Are pregnant or may be pregnant.
- (3) Have severe abdominal pain, nausea, or vomiting.
- ✓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:
- Gastrointestinal: Severe abdominal pain, nausea, or vomiting
- ✓Stop taking and consult a doctor, pharmacist, or registered salesperson — bringing this package insert with you — if the following symptom persists or worsens:
- Diarrhea
- ✓Stop taking and consult a doctor, pharmacist, or registered salesperson — bringing this package insert with you — if symptoms do not improve after about 1 week.
Additional Information
If taken at bedtime, effects typically appear the following morning (approximately 6 to 11 hours later).
Once regular bowel movements resume, gradually extend the interval between doses to restore normal bowel habits.
Sources & Documents
- Japanese product page
- English PDF
- Japanese PDF
- Last verified: May 25, 2026
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For informational purposes only. Always consult a doctor or pharmacist before taking any medication.