Drug Interaction Study Between Antimalarial and Anti-HIV Medications

participants receive a total of 6 doses of artemether(80mg)/lumefantrine(480mg)for baseline PK evaluation. This is followed by a 26-day course of either efavirenz(600mg) once daily or lopinavir/ritonavir (400mg/100mg) twice daily and additional 6 doses of artemether/lumefantrine to determine the pharmacokinetics of the antimalarial medications in the context of antiretrovirals. The participants undergo at least a 14 day washout period (between the last baseline PK blood draw and the initiation of antiretrovirals)