Slevin M L, Piall E M, Aherne G W, Johnston A, Sweatman M C, Lister T A
Br J Clin Pharmacol. 1981 Oct;12(4):507-10. doi: 10.1111/j.1365-2125.1981.tb01258.x.
1 The pharmacokinetics of subcutaneous cytosine arabinoside were compared with bolus intravenous injection and intravenous infusion in five patients with acute myelogenous leukaemia. 2 Subcutaneous cytosine arabinoside was rapidly absorbed and then declined biexponentially with initial and terminal half-lives similar to intravenous bolus injection. 3 Cytosine arabinoside levels declined rapidly after intravenous bolus and subcutaneous bolus injection, and fell below steady state infusion levels after a mean time of 40 min (intravenous bolus) and 100 min (subcutaneous injection).