On the question of dose-dependent chloroquine elimination of a single oral dose.
Subjects (n = 45) were randomly given single oral doses of 2 (n = 11), 3 (n = 9), 5 (n = 8), 10 (n = 10), or 15 mg/kg (n = 7) chloroquine base. Chloroquine was analyzed by HPLC in serum samples taken at 3 to 168 hr after dosing. AUCs, calculated for the time period of 0 to 168 hr were proportional to the doses. Mean AUC value increased 6.7 times when the dose was increased 7.5 times (from 2 to 15 mg/kg). These data do not support the existence of significant capacity-limited chloroquine elimination within the dose range studied.
D000293:Adolescent; D000328:Adult; D002738:Chloroquine / Q000009:adverse effects / Q000031:analogs & derivatives / Q000097:blood / Q000378:metabolism*; D004305:Dose-Response Relationship, Drug; D005260:Female; D006801:Humans; D007700:Kinetics; D008297:Male; D008875:Middle Aged; D013997:Time Factors
D002738:Chloroquine; C007278:desethylchloroquine