Constipation is an uncomfortable problem faced by people of all ages. There are two popular products in the market to solve constipation, one is Miralax and the other is Dulcolax. Both are laxatives and both are effective in constipation. The way both work is different. Knowing the difference between the two will make it easier for you to choose one.
What Is Miralax?
Miralax is an osmotic laxative. It works by softening the stool so that it can pass easily. Its job is to draw water into the colon. It is often used to treat mild to moderate constipation. It is gentle on the digestive system
Key Features of Miralax:
- Form: Powder mixed with water
- Action: 1 to 3 days.
- Usage: Suitable for long-term use
- Side effects: Bloating, gas, nausea (rare)
What Is Dulcolax?
Dulcolax (bisacodyl) is a stimulant laxative. It activates the muscles of the intestines to contract, which makes stools pass faster. It is most often used for short-term relief, and before a medical procedure such as a colonoscopy
Key Features of Dulcolax:
- Form: Tablets
- Time of Action: 6 to 12 hours (oral), 15 to 60 minutes (suppository)
- Usage: Not recommended for long-term use.
- Possible Side effects: Cramping, diarrhea, urgency
Comparing Miralax and Dulcolax
| Feature | Miralax | Dulcolax |
| Type of laxative | Osmotic | Stimulant |
| Form | Powder | Tablet or suppository |
| Onset of action | 1–3 days | 6–12 hours (oral), <1 hour (rectal) |
| Recommended use | Long-term, gentle relief | Short-term, faster relief |
| Suitable for daily use | Yes | No (use occasionally) |
| Common side effects | Bloating, gas | Cramping, urgency, diarrhea |
When to Use Each
Choose miralax if
you need gentle, gradual relief and if you have chronic constipation
Choose Dulcolax if
you need quick, short-term relief or if you are preparing for a medical procedure.
NOTE:- Consult a doctor before starting any medicine and also consult a doctor if you face any digestive issues.
Frequently Asked Questions (FAQs)
Can I take Miralax and Dulcolax together?
Yes, sometimes your doctor may suggest you to take both miralax and dulcolax together especially for bowel preparation before colonoscopy. However, both should not be taken together without doctor’s advice
Is Miralax safer than Dulcolax?
Miralax is often considered safe for long-term or daily use because it does not stimulate bowel muscles. Dulcolax is safe for occasional, short-term use.
How long can I take Miralax?
Miralax can be taken for 7 days without a prescription. For long term use, doctor’s advice is necessary
Can I use Dulcolax every day?
Using Dulcolax daily is not recommended, as it may lead to dependency or worsen bowel function over time.
Which is better for children?
Miralax is recommended for children to relieve constipation because it is gentle. Always consult a pediatrician before giving any laxative to your child
What’s better for IBS-C (Irritable Bowel Syndrome with Constipation)?
MiraLAX is often preferred for IBS-C, as it does not irritate the intestines or cause cramping like stimulant laxatives.
Conclusion
Choosing miralax or dulcolax depends on your health situation whether you need gentle, daily relief or fast, occasional help. However, both are effective for their purpose
