Clidinium Bromide-d5 is a deuterated compound of Clidinium Bromide. Clidinium Bromide has a CAS number of 3485-62-9. Clidinium, a synthetic anticholinergic agent, has been shown in experimental and clinical researchers to have a pronounced antisecretory and antispasmodic effect on the gastrointestinal tract. It can inhibit muscarinic actions of acetylcholine at postganglionic parasympathetic neuroeffector sites. It is used for the treatment of peptic ulcer disease and also to help relieve cramps or stomach spasms or abdominal due to colicky abdominal diverticulitis, pain, and irritable bowel syndrome.