Pepto Bismol Ultra Original Flavor. When you have a sour stomach, Pepto's formula coats your stomach and provides fast relief from nausea, heartburn, indigestion, upset stomach, and diarrhea. Pepto Bismol ULTRA has got you covered. May be HSA/ FSA eligible.*THESE STATEMENTS HAVE NOT BEEN EVALUATED BY THE FOOD AND DRUG ADMINISTRATION. THIS PRODUCT IS NOT INTENDED TO DIAGNOSE, TREAT, CURE, OR PREVENT ANY DISEASE