Bisacodyl — Stimulant laxative. Study the mechanism, listed uses and warnings from the US label on one sourced card.
Generic name
Bisacodyl
Class
Stimulant laxative
Mechanism
Intestinal brush-border enzymes and colonic bacteria convert bisacodyl to the active metabolite BHPM, which acts directly on the colonic mucosa to produce peristalsis.
Used for
Occasional constipation
Common side effects
Stomach discomfort; Cramps; Faintness
Warnings
Do not chew or crush the tablets; Stop use and ask a doctor if rectal bleeding occurs; Stop use and ask a doctor if a laxative is needed for more than 1 week
Interactions
Do not take within 1 hour after an antacid or milk
Label date: 20260908 · For learning, not clinical decisions. US label and brand information; always consult the current source.
Source snapshot checked: 2026-10-21. The source document and selected fields were compared. The complete card has not had an independent clinical review.
Mechanism: Colonic bacteria convert senna constituents to an active metabolite that stimulates colonic peristalsis.
On both cards: Used for — Occasional constipation · Warnings — Stop use and ask a doctor if rectal bleeding occurs
Only on the Senna (Sennosides) card: Warnings — Do not use for longer than 1 week unless directed by a doctor; Ask a doctor before use for a sudden change in bowel habits lasting over 2 weeks
An item counts as shared only when both cards use the same wording. If a card does not list an item, that is not a statement that the effect never occurs.