





Colac suppository type
For urgent constipation: a fast-acting suppository for constipation that acts locally on the rectum
For These People and Situations
Product Overview
“Colac suppository type” is a fast-acting suppository for constipation in Taisho Pharmaceutical’s Colac series. The suppository melts at body temperature and reacts with mucus in the rectum to produce fine spherical carbon dioxide bubbles, which act on the rectum to gently promote bowel movements. Because the carbon dioxide acts locally only on the rectum, it is characterized by a gentle action that is less likely to cause abdominal pain. While oral products often take time to begin working, this product takes effect approximately 10–30 minutes after use. It can be used in a wide range of situations, including sudden constipation while traveling or before going out, for people who have difficulty taking oral medicines, and for those who are reluctant to use enemas. It is a Class 3 OTC Drug that can be used from age 12.
Product Features
Fast-acting: effects appear in approximately 10–30 minutes
Fast-actingBecause it is inserted directly into the rectum, it works faster than oral products, with effects appearing approximately 10–30 minutes after use (individual differences may occur). This suppository is easy to use in urgent situations, such as while traveling or before going out.
Carbon dioxide acts only on the rectum, making abdominal pain less likely
Local actionThe suppository quickly melts at body temperature and reacts with mucus to produce fine spherical carbon dioxide bubbles. The carbon dioxide acts locally only on the rectum to promote intestinal movement, making it less likely to cause abdominal pain than ingredients that stimulate the entire intestine.
An easy-to-use suppository design as an alternative to enemas
ConvenientUnlike an enema, which involves injecting liquid, this product is a solid suppository that is inserted. It is used by inserting it while seated and then standing up, and is also recommended for people who find enemas difficult to use or who already use enemas.
Active ingredients
| Ingredient name | Amount contained | Classification |
|---|---|---|
| Sodium bicarbonate | 0.5 g (per suppository) | Generates carbon dioxide gas and promotes intestinal movement |
| Anhydrous sodium dihydrogen phosphate | 0.68 g (per suppository) | Facilitates carbon dioxide gas generation |
Indications and Effects
Dosage and Administration
| Age | Dose per use | Number of doses per day |
|---|---|---|
| 12 years of age and older | Insert one suppository into the rectum | If no effect is observed, an additional suppository |
| Under 12 years of age | Do not use | — |
❓ Frequently Asked Questions
QHow does it differ from an enema?
AAn enema stimulates the intestines by injecting liquid, whereas Colac suppository type is a solid suppository that is inserted. The suppository melts at body temperature and produces carbon dioxide gas, which acts on the rectum. It is also recommended for people who find enemas difficult to use or who already use enemas.
QCan it be used during pregnancy?
AAccording to Taisho Pharmaceutical’s official FAQ, Colac suppository type is recommended for pregnant women considering using a laxative. However, pregnancy is a time when various changes can easily occur in the body. Be sure to consult your doctor before use.
QCan it be used while breastfeeding?
AAccording to Taisho Pharmaceutical’s official FAQ, Colac suppository type may be used while breastfeeding.
QWhat should I do if there is no effect after repeated use?
AIf symptoms do not improve after 2–3 uses, discontinue use and consult a physician, pharmacist, or registered salesperson, bringing the package insert with you.
- This medicine is inserted through the anus. Do not take it by mouth.
- Strictly follow the specified dosage and directions for use.
- If symptoms do not improve after 2–3 uses, discontinue use and consult a physician, pharmacist, or registered salesperson, bringing the package insert with you.
- If you are pregnant or may be pregnant, consult your doctor before use.
- Contains soybean lecithin as an additive. If you are allergic to soybeans, consult a physician, pharmacist, or registered salesperson before use.
- When this product is used in children, it should be used under the guidance and supervision of a parent or guardian.
- Do not use in children under 12 years of age.
- Read the package insert carefully before use. If you have any questions, consult a physician, pharmacist, or registered salesperson.
- Store in a cool place away from direct sunlight.
- Store out of the reach of children.
- Do not transfer this product to another container.












































































