title: Respiratory and subjective effects of etomide and codeine.
mesh_terms: D000700:Analgesics / Q000494:pharmacology*; D002986:Clinical Trials as Topic; D003061:Codeine / Q000494:pharmacology*; D006801:Humans; D008297:Male; D012119:Respiration / Q000187:drug effects*; D012129:Respiratory Function Tests
chemical_list: D000700:Analgesics; D003061:Codeine