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Librium, the original chlordiazepoxide HCI and prototype for the benzodiazepine compounds, was synthesized and developed at Hoffmann-La Roche Inc. It is a versatile therapeutic agent of proven value for the relief of anxiety. Librium (chlordiazepoxide) is among the safer of the effective psychopharmacologic compounds available, as demonstrated by extensive clinical evidence.

Librium (chlordiazepoxide) is available as capsules containing 5 mg, 10 mg or 25 mg chlordiazepoxide HCI. Each capsule also contains corn starch, lactose and talc. Gelatin capsule shells may contain methyl.and propyl parabens and potassium sorbater with the following dye systems: 5-mg capsules - FD&C Yellow No. 6 plus D&C Yellow No. 10 and either FD&C Blue No. 1 or FD&C Green No. 3. 10-mg capsules - D&C Yellow No. 10 and either FD&C Blue No. 1 plus FD&C Red No. 3 or FD&C Green No. 3 plus FD&C Red No. 40. 25-mg capsules- D&C Yellow No. 10 and either FD&C Green No. 3 or FD&C Blue No. 1.

Chlordiazepoxide hydrochloride is 7-chloro-2- (methylamino) -5-phenyl-3H-1,4-benzodiazepine 4-oxide hydrochloride. A white to practically white crystalline substance, it is soluble in water. It is unstable in solution and the powder must be protected from light. The molecular weight is 336.22. The structural formula of chlordiazepoxide hydrochloride is as follows:

Last reviewed on RxList: 10/19/2010
This monograph has been modified to include the generic and brand name in many instances.