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Br J Clin Pharmacol. 2003 Mar;55(3):314-6.

A placebo-controlled pharmacodynamic and pharmacokinetic interaction study between tamsulosin and acenocoumarol.

Author information

1
Medeval, Skelton House, Manchester, UK. p.rolan@medeval.com

Abstract

AIM:

To evaluate pharmacokinetic and pharmacodynamic interactions between tamsulosin and acenocoumarol.

METHODS:

Twelve healthy volunteers received tamsulosin 0.4 mg or placebo once daily for 9 days in a double-blind, cross-over study. On day 5 of each study period, a single 10-mg oral dose of racemic acenocoumarol was administered.

RESULTS:

The ratios (point estimates (90% confidence intervals)) of values in the presence and absence of tamsulosin were: AUCPT 1.01 (0.98, 1.03); maximum prothrombin time (Ptmax) 0.99 (0.94, 1.05); AUC (R)-acenocoumarol 1.02 (0.90, 1.16), and AUC (S)-acenocoumarol 1.03 (0.89, 1.20). Both combinations, tamsulosin and placebo with acenocoumarol, were well-tolerated.

CONCLUSIONS:

Multiple doses of tamsulosin had no effect on the pharmacokinetics or pharmacodynamics of a single high dose of acenocoumarol.

PMID:
12630984
PMCID:
PMC1884205
[Indexed for MEDLINE]
Free PMC Article
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