meprobamate [key], tranquilizing drug that acts as a depressant of the central nervous system and is commonly used in the treatment of anxiety and sometimes schizophrenia. Although meprobamate is chemically unlike barbiturates and has lower toxicity, it has similar pharmacological effects, especially the ability to induce sleep and alleviate anxiety. The drug possesses some anticonvulsant properties and is used to suppress some forms of epilepsy. A muscle relaxant, meprobamate is also used to treat abnormal motor activity. It is marketed under the trade names Equanil and Miltown.
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