Laxative Sennosides Reg-Strength 15 mg, Chocolate Flavored Pieces, 24 ct, QC97059 Sale! This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Compare to the Active Ingredient in ex-lax Chocolate. Relieves occasional constipation (irregularity). Generally produces bowel movement in 6 to 12 hours. Gluten-free