Soma, like Equanil and Miltown is a muscle relaxer. One of its metabolites, meprobamate (a controlled substance), may cause dependence.
Meprobamate was introduced as an anti-anxiety agent in 1955 and is prescribed primarily to treat anxiety, tension, and associated muscle spasms. More than 50 tons are distributed annually in the United States under its generic name and brand names such as Miltown® and Equanil®. Its onset and duration of action are similar to the intermediate-acting barbiturates; however, therapeutic doses of meprobamate produce less sedation and toxicity than barbiturates. Excessive use can result in psychological and physical dependence. Carisoprodol (Soma®), a skeletal muscle relaxant, is metabolized to meprobamate. This conversion may account for some of the properties associated with carisoprodol and likely contributes to its abuse.
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