title: Comparative potency and speed of onset of fazadinium and d-tubocurarine.
abstract: The potency and speed of onset of fazadinium and d-tubocurarine have been compared at three cumulative doses. Wtih thiopentone as the induction agent, the dose ratio fazadinium/d-tubocurarine ranged from 1.2 to 1.3 for single twitch reduction and from 1.1 to 1.2 for reduction of tetanus. The times taken for the development of 50% and 100% effect after each dose increment were not significantly different for the three doses of fazadinium and the 2nd and 3nd doses of d-tubocurarine. However, the 1st dose of d-tubocurarine was markedly slower than fazadinium to achieve a 50% and 100% effect.
mesh_terms: D000759:Adjuvants, Anesthesia / Q000592:standards*; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction / Q000187:drug effects; D009469:Neuromuscular Junction / Q000187:drug effects*; D011726:Pyridinium Compounds / Q000008:administration & dosage / Q000494:pharmacology*; D013997:Time Factors; D014403:Tubocurarine / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D000759:Adjuvants, Anesthesia; D011726:Pyridinium Compounds; D014403:Tubocurarine