Baclofen USP is a muscle relaxant and antispastic, available as 10 mg and 20 mg tablets for oral administration. Its chemical name is 4-amino-3-(4-chlorophenyl)-butanoic acid.

Baclofen USP is a white to off-white, odorless or practically odorless crystalline powder. It is slightly soluble in water, very slightly soluble in methanol, and insoluble in chloroform. The structural formula is represented below:

C₁₀H₁₂C_lNO₂             M.W. 213.66

Baclofen Tablets USP 10 mg and 20 mg contain the following inactive ingredients: magnesium stearate, microcrystalline cellulose, povidone and starch (corn).

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