Not Medical Advice: Sources suggest that Pepto Bismol Easy to Swallow Caplets Original has less than 1gram of carbohydrate in 2 caplets.
Ingredients: Bismuth Subsalicylate, Calcium Carbonate, D&C Red No. 27 Aluminum Lake, Magnesium Stearate, Mannitol, Microcrystalline Cellulose, Povidone, Polysorbate 80, Silicon Dioxide, Sodium Starch
Pepto Bismol Liquid – Regular and Maximum Strength on the other hand does not contain carbohydrates.
Active ingredient: Bismuth Subsalicyate (262 mg) (Total Salicylate 130 mg)
Inactive ingredients: Benzoic Acid, D&C Red No. 22, D&C Red No. 28, Flavor, Magnesium Aluminum Silicate, Methylcellulose, Saccharin Sodium, Salicylic Acid, Sodium Salicylate, Sorbic Acid, and Water
Pepto-Bismol, relieves upset stomach symptoms (i.e., indigestion, heartburn, nausea and fullness caused by over-indulgence in food and drink) without constipating; and, controls diarrhea.
The active ingredient is believed to work via a topical effect on the stomach mucosa. For diarrhea, it is believed to work by several mechanisms in the gastrointestinal tract, including: 1) normalizing fluid movement via an antisecretory merchanism, 2) binding bacterial toxins and 3) antimicrobial activity.
Having an upset stomach blows—especially when it leaves you doubled over in pain. . While it's a good idea to keep your diet simple during these periods (think clear broth and saltine crackers), certain foods can actually help soothe the stomach.