Devrom® is an internal deodorant used to effectively neutralize odor from stool and flatulence. A trusted product for over 40 years and no prescription required, Devrom® is an over-the-counter drug that safely and effectively neutralizes offensive odor. Our FDA approved Devrom® comes in a chewable tablet form. Active ingredient is bismuth subgallate. For complete odor control, Devrom® is the answer!