Efavirenz use may cause false positive result for marijuana.
D000480:Alkynes; D048588:Benzoxazines; D002186:Cannabinoids / Q000652:urine*; D002849:Chromatography, Gas; D003521:Cyclopropanes; D004359:Drug Therapy, Combination; D005189:False Positive Reactions; D015658:HIV Infections / Q000188:drug therapy*; D006801:Humans; D010078:Oxazines / Q000627:therapeutic use / Q000652:urine*; D018894:Reverse Transcriptase Inhibitors / Q000627:therapeutic use / Q000652:urine*
D000480:Alkynes; D048588:Benzoxazines; D002186:Cannabinoids; D003521:Cyclopropanes; D010078:Oxazines; D018894:Reverse Transcriptase Inhibitors; C098320:efavirenz