Evac-u-Gen is a chewable and pleasant tasting laxative that is formulated especially for those aged 55 and up. Evac-u-Gen is a mild laxative formulated for the relief of occasional constipation. This product generally produces a bowel movement in 6 to 12 hours. Active ingredients: stimulant laxative, sennosides 10 mg. per tablet. 80 tablets per bottle.