Therapeutic serum concentrations of meperidine (Demerol).
D000293:Adolescent; D000328:Adult; D000368:Aged; D006801:Humans; D007273:Injections, Intramuscular; D008614:Meperidine / Q000097:blood* / Q000627:therapeutic use; D008875:Middle Aged; D013053:Spectrophotometry
D008614:Meperidine