Dulcolax is a medication containing 5mg of Bisacodyl in coated tablet form, designed to provide overnight relief from constipation. Each pack contains 40 tablets that offer dependable and effective constipation relief within 6-12 hours of taking the medication. This medication comes in the form of coated tablets which help provide overnight relief from constipation symptoms. The active ingredient Bisacodyl 5mg works within 6-12 hours to provide effective relief. The package contains 40 tablets. As this is a medication, please consult with your healthcare provider about proper usage and dosage.