ISSN:
1432-1041
Keywords:
cimetidine
;
subchronic administration
;
pharmacokinetics
;
healthy volunteers
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Medicine
Notes:
Summary The influence of cimetidine on its own pharmacokinetics after subchronic administration was assessed in 8 healthy volunteers, aged 26–29 years. On control Day 1, each subject received cimetidine 300 mg i.v., and serum and urine samples were obtained. Each subject was initiated on cimetidine 600 mg b.i.d. orally for 2 weeks. There were 3 further study days repeated after 1 and 2 weeks of cimetidine dosing and 1 week after stopping cimetidine. There was no significant difference in the mean total body clearance of cimetidine among the 4 study days. Mean elimination t1/2β and Vβ were similarly unchanged. However mean renal clearance (CLR) and fe were significantly increased following 2 weeks of drug dosing (CLR 5.41 ml·min−1 kg−1; fe 0.61) compared to control (CLR 4.00 ml·min−1·kg−1; fe 0.48). Although the non renal clearance was reduced from control values of 4.29 to 3.51 ml·min−1·kg−1 following 2 weeks of dosing the difference was not significant. Dosage adjustment of cimetidine appears unnecessary after short-term dosing in the presence of normal renal function.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00608228
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