Carisoprodol (Soma, others) is a commonly prescribed, noncontrolled, s
keletal muscle relaxant whose active metabolite is meprobamate. Patien
ts for whom carisoprodol is prescribed arc at risk for meprobamate dep
endence; several such cases have been reported. Toxicity and withdrawa
l associated with the use of meprobamate is high and has led to abando
nment of this agent in clinical practice. Because carisoprodol possess
es the same risks it should be avoided when possible, and it should be
given schedule IV controlled substance status.