Parthenon Devrom - Chewable Tablet Odor Eliminator is an internal deodorant with bismuth subgallate to effectively treat embarrassing odors from flatulence and stool. These deodorant tablets are FDA approved and available without a prescription. Devrom chewable tablets help to neutralize odors from colostomies, ileostomies, fecal incontinence and bariatric surgery.