Final answer:
Bisacodyl (Ducolax) is a stimulant laxative that helps to relieve constipation.
Step-by-step explanation:
Bisacodyl (Ducolax) is a stimulant laxative commonly used to relieve constipation. It works by stimulating the movement of food wastes through the large intestine, propelling feces toward the rectum and ultimately eliminating feces. It does not fall under the categories of bulk forming or stool softener laxatives.