Laxative Bisacodyl 10 mg Suppositories, 8 ct, QC95451 Sale! This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Compare to the Active Ingredient in Dulcolax. For the relief of occasional constipation. Generally produces bowel movement in 15 minutes to 1 hour. Gentle and fast relief. Comfort shaped.