Dietary Supplement. Natural laxative for occasional constipation. 80% smaller tablets (Compared to Prunelax regular strength tablets). Senna & dried plum supplement: 8 to 12 hours overnight relief. Anthraquinones per tablet equivalent to Sennosides 15 mg. Prunelax Minitabs contains dried plum extract with herbs which help you maintain bowel regularity. Prunelax minitabs takes effect within 8 to 12 hours. www.prunelax.com. (These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.)