Stimulant laxative in the list is which?

• A. Bisacodyl
• B. Ambroxol
• C. Carbocisteine
• D. Ibuprofen

Answer: (A)

Stimulant laxatives work by directly stimulating the nerves in the intestinal wall to increase peristaltic activity and intestinal secretions, producing a bowel movement. Bisacodyl fits this action because it is a stimulant laxative that becomes active in the colon to promote motility. It’s often given as an enteric-coated tablet to protect the stomach and ensure release in the colon, leading to a faster effect when used as a suppository (about 15 to 60 minutes) and a bit slower when taken orally (roughly 6 to 12 hours). Because its action is local to the gut, systemic exposure is limited, but long-term use can cause dependence and electrolyte imbalance. The other listed medicines don’t act this way: Ambroxol and Carbocisteine are mucolytics used to loosen mucus in the airways, not to stimulate bowel movement, and Ibuprofen is an NSAID that relieves pain and inflammation but does not function as a laxative.