title: Letter: Metabolites of meperidine.
mesh_terms: D000700:Analgesics / Q000008:administration & dosage / Q000633:toxicity; D036861:Delivery, Obstetric; D004952:Esters; D005260:Female; D006801:Humans; D007263:Infusions, Parenteral; D007273:Injections, Intramuscular; D007743:Labor, Obstetric; D008614:Meperidine / Q000008:administration & dosage / Q000378:metabolism*; D009557:Nipecotic Acids / Q000008:administration & dosage / Q000633:toxicity; D011247:Pregnancy; D013997:Time Factors
chemical_list: D000700:Analgesics; D004952:Esters; D009557:Nipecotic Acids; D008614:Meperidine