RT Journal T1 NEw and nonofficial drugs JF Journal of the American Medical Association JO Journal of the American Medical Association YR 1959 FD July 11 VO 170 IS 11 SP 1316 OP 1317 DO 10.1001/jama.1959.63010110010012a UL http://dx.doi.org/10.1001/jama.1959.63010110010012a AB Valethamate Bromide (Murel).—  2-Diethylaminoethyl 3-methyl-2-phenylvalerate methylbromide.— The structural formula of valethamate bromide may be represented as follows:Actions and Uses.—  Valethamate bromide, introduced in 1958, is a quaternary ammonium compound which is used clinically as an antispasmodic. Animal experiments indicate that the drug acts predominantly as an anticholinergic agent. In addition, it exerts a mild direct inhibiting effect on the motility of smooth muscle. Valethamate is also said to exhibit a transient ganglionic blocking action; such effects are minimal, if not imperceptible, in the doses used clinically. The drug does not diminish gastric secretion to any appreciable extent.Valethamate bromide is proposed for oral and parenteral use for the treatment of hypermotility and spasm of the gastrointestinal, genitourinary, and biliary tracts as well as for the adjunctive management of peptic ulcer. Although favorable results have been reported in some patients, the bulk of the clinical evidence available to date is