Senokot-S Natural Vegetable Laxative Ingredient + Stool Softener Tablets, 60-count dual action Senokot-S combines the proven strength of Senokot with the gentleness of a stool softener. For occasional constipation including constipation associated with certain medications, Senokot-S Tablets provide gentle, overnight relief. Like all Senokot Laxative products, Senokot-S Tablets are produced from the natural vegetable laxative ingredient senna. When you - or someone in your family - are troubled by occasional constipation, you want relief that's effective but gentle. For over 55 years, physicians and pharmacists have recommended - and customers have relied on - the Senokot Family of Laxatives to provide gentle, effective overnight relief of occasional constipation.