Constipated? Time's up. Dulcolax Medicated Laxative Suppositories can help get you going in 15-60 minutes. These comfort-shaped suppositories are medicated with active ingredient bisacodyl for fast relief in minutes. For rectal use only. Do not swallow. Trust the No. 1 doctor-recommended stimulant laxative brand* for relief when you need it most. * Among OTC Stimulant Laxatives HSA/FSA EligibleRestrictions apply; contact your insurance provider about plan allowances and requirements.