Bismuth subsalicylate. Upset stomach reliever/antidiarrheal. 5 Symptom Relief: nausea; heartburn; indigestion; upset stomach; diarrhea. www.pg.com. www.pepto-bismol.com. Other information: Each chewable tablet contains: 50 mg calcium; 123 mg salicylate; low sodium. Store at no greater than 25 degrees C. Avoid excessive heat (over 40 degrees C). Tamper Evident: Do not use if inner printed seal on bottle is broken or missing.