title: Effect of hemodialysis on the pharmacokinetics of theophylline in chronic renal failure.
abstract: We studied theophylline elimination in 8 patients with chronic renal failure to determine the effect of hemodialysis on the pharmacokinetics of theophylline. Each subject was studied twice, once on a nondialysis day and again during dialysis. Total body theophylline clearance on the nondialysis day was similar to that reported for patients with normal renal function (57.4 +/- 27.2 ml/kg/h). Hemodialysis accelerated theophylline elimination and shortened serum theophylline half-life in all patients (nondialysis t 1/2 = 7.3 h +/- 2.3 vs. dialysis t 1/2 = 2.7 +/- 0.9 h, p less than 0.01). Dialysis clearance averaged 59.7 +/- 16.4 ml/kg/h with a fraction of drug removed of 0.4 liters in 4 h. Guidelines for theophylline management during hemodialysis are suggested.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007676:Kidney Failure, Chronic / Q000097:blood* / Q000628:therapy; D007700:Kinetics; D008297:Male; D008657:Metabolic Clearance Rate; D008875:Middle Aged; D006435:Renal Dialysis; D013806:Theophylline / Q000097:blood*
chemical_list: D013806:Theophylline