Intravenous phenytoin: clinical and pharmacokinetic aspects.
Phenytoin was administered intravenously in large doses (mean = 16.6 mg per kilogram) for prevention and treatment of seizures on 159 occasions to 139 patients aged 17 to 94 years (mean = 52 years) and weighing 37 to 113 kg (mean = 65 kg). Hypotension was more frequent among older patients. No deaths were attributable to phenytoin. Volumes of distribution were relatively constant (mean = 0.78 +/- 0.11 liters per kilogram), but half-lives varied considerably and were prolonged (mean = 51 +/- 32 hours) because of the large doses administered. A dose of 18 mg per kilogram was effective in maintaining phenytoin serum levels above 10 microgram per milliliter for 24 hours.
D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006207:Half-Life; D006801:Humans; D007022:Hypotension / Q000139:chemically induced; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D010672:Phenytoin / Q000008:administration & dosage* / Q000009:adverse effects / Q000097:blood
D010672:Phenytoin