title: Age-dependent dose-response relationship of ORG NC 45 in anaesthetized patients.
abstract: The effects of age on the dose of Org NC 45 were studied in 24 healthy, anaesthetized patients using an on-demand infusion of the drug which produced a stable twitch height of 10% of its initial value. The patients were allocated as follows: group I = age less than 40 yr; group II = 40-60 yr and group III = age greater than 60 yr. A steady-state dose measured every 10 min, was achieved in all the patients 30 min after the start of the administration of Org NC 45. Significant decreases of steady-state dosage requirement (P = 0.01) and rate of recovery from blockade (P less than 0.01) were observed between group III and the other two groups.
mesh_terms: D000328:Adult; D000367:Age Factors; D000768:Anesthesia, General; D004305:Dose-Response Relationship, Drug; D006801:Humans; D008875:Middle Aged; D009119:Muscle Contraction / Q000187:drug effects; D009466:Neuromuscular Blocking Agents / Q000008:administration & dosage* / Q000494:pharmacology; D010197:Pancuronium / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000494:pharmacology; D013997:Time Factors; D014673:Vecuronium Bromide
chemical_list: D009466:Neuromuscular Blocking Agents; D014673:Vecuronium Bromide; D010197:Pancuronium