Efavirenz D5 (Sustiva)84 is also mandated for use with at leasttwo other antiretroviral agents. The compound is morethan 99% protein bound, and CSF concentrations exceedthe free fraction in the serum. Metabolism occurs in theliver. The half-life of a single dose of Efavirenz D5 is 52 to 76hours, and 40 to 55 after multiple doses (the drug inducesits own metabolism). Peak concentration is achieved in 3to 8 hours. Elimination is 14% to 34% in urine (as metabolites)and 16% to 41% in feces (primarily as Efavirenz D5).The oral dosage form is supplied as a capsule.
For use in combination treatment of HIV infection (AIDS)