How Long Does It Take for Dulcolax to Take Effect?

By Staff WriterLast Updated Apr 7, 2020 9:30:32 AM ET

Dulcolax laxative tablets typically induce a bowel movement within 6 to 12 hours, according to WebMD. Quicker results may be obtained with Dulcolax laxative suppositories, which produce a bowel movement within 15 minutes to an hour.