262 milligrams of bismuth subsalicylate per chewable, sugar-free tablet. Soothes irritation with a protective coating action without constipating. Compare to active ingredient in Pepto Bismol® – a registered trademark of Procter & Gamble.. There are two chewable tablets per packet and 50 packets per handy dispenser carton – making it easy to share with co-workers, neighbors, friends and family..