DULCOLAX SUPPOSITORIES prescription and dosage information for physicians and health care professionals. Pharmacology, adverse reactions, warnings, and DULCOLAX SUPPOSITORIESside effects. By acting directly in the rectum, Dulcolax® Suppositories work by stimulating your natural bowel movement and softening stools for fast & effective relief from occasional constipation in as little as 15 to 60 minutes. Dulcolax 10 mg Suppository is a stool softener . It is used in the treatment of constipation (difficulty in passing stools). It is also used before certain medical procedures or surgery to empty the bowels. This medicine works by increasing the activity of the intestines to cause a bowel movement. For over 39 years, Apollo Pharmacy has been providing you with genuine medicines round-the-clock, through 24-hour pharmacies. And now through Apollo Pharmacy, we intend to make your lives easier – by getting your medicines delivered to you.