Q. What products are available that can stop the terrible smell of gas when dietary discretion is not enough?
A. Pepto-Bismol (bismuth subsalicylate) appears to be effective at reducing hydrogen sulfide formation (Gastroenterology, May, 1998). This is responsible for some of the nasty smells associated with intestinal gas. Do not take more than is indicated on the label because too much bismuth can be toxic.
