title: Comparison of i.m. lysine acetylsalicylate and oxycodone in the treatment of pain after operation.
abstract: Lysine acetylsalicylate (LAS) is a soluble salt of acetylsalicylic acid and can be given parenterally. LAS 12.5 mg kg-1 and 25 mg kg-1 were compared with oxycodone 0.15 mg kg-1 in the treatment of pain after operation in 60 patients undergoing varicose vein surgery. Both treatments almost completely relieved moderate to severe pain for the 3-h observation period. The time until the peak of action was longer after LAS (60-90 min) than after oxycodone (30-60 min). No significant differences were found between the smaller and larger doses of LAS, suggesting a plateau effect. Further clinical experiments with LAS using i.v. mode of administration and other pain models are warranted.
mesh_terms: D000328:Adult; D001241:Aspirin / Q000008:administration & dosage / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D003061:Codeine / Q000031:analogs & derivatives*; D004311:Double-Blind Method; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D007273:Injections, Intramuscular; D008297:Male; D008875:Middle Aged; D010098:Oxycodone / Q000008:administration & dosage / Q000627:therapeutic use*; D010149:Postoperative Pain / Q000188:drug therapy*; D011897:Random Allocation; D013997:Time Factors; D014648:Varicose Veins / Q000601:surgery
chemical_list: D010098:Oxycodone; D001241:Aspirin; D003061:Codeine