title: Pharmacological properties of substituted gamma-butyrolactones. Part III: Analgesic action.
mesh_terms: D000700:Analgesics; D000818:Animals; D004353:Drug Evaluation, Preclinical; D004357:Drug Synergism; D005663:Furans / Q000627:therapeutic use* / Q000633:toxicity; D007783:Lactones / Q000627:therapeutic use* / Q000633:toxicity; D007928:Lethal Dose 50; D008297:Male; D008722:Methods; D051379:Mice; D009020:Morphine / Q000627:therapeutic use; D010146:Pain / Q000188:drug therapy
chemical_list: D000700:Analgesics; D005663:Furans; D007783:Lactones; D009020:Morphine