Bismuth subsalicylate is a medication commonly used to treat digestive issues, particularly nausea, diarrhea, and indigestion. It works by coating the stomach and intestines, providing a protective barrier that helps reduce irritation. This compound is often found in over-the-counter products like Pepto-Bismol. In addition to its soothing properties, bismuth subsalicylate has mild antibacterial effects, which can help combat certain types of bacteria that cause gastrointestinal discomfort. It is important to follow dosage instructions and consult a healthcare professional if symptoms persist or worsen.