Key result
A single 25 mg oral dose of carvedilol increased the mean maximum plasma concentration and area under the curve of orally administered digoxin, but did not alter kinetics of intravenous digoxin.
Why the study?
Does a single oral dose of 25 mg carvedilol alter the plasma and urinary kinetics of digoxin in healthy male subjects?
RCT
Double-blind
Does a single oral dose of 25 mg carvedilol alter the plasma and urinary kinetics of digoxin in healthy male subjects?
A single oral dose of carvedilol increases the systemic bioavailability of oral digoxin, highlighting a clinically relevant pharmacokinetic drug interaction.
Clinicians should monitor digoxin levels with oral carvedilol coadministration; confirms route-specific pharmacokinetic interaction in RCT data.
The effects of a single oral dose of 25 mg carvedilol on the plasma and urinary kinetics of digoxin after an oral and intravenous 0.5 mg dose, were investigated in two separate double-blind, placebo-controlled, period-balanced cross-over studies in healthy male subjects. Carvedilol increased the mean maximum plasma concentration and the area under the plasma concentration time-curve of digoxin when administered orally. The effects were virtually confined to the first 4 h after dosing, and the apparent terminal disposition rate constant was not changed. Carvedilol did not alter the plasma and urinary kinetics of intravenously administered digoxin.
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Mey et al. (1990) conducted an RCT in Healthy. Carvedilol vs. Placebo was evaluated on Plasma and urinary kinetics of digoxin. A single 25 mg oral dose of carvedilol increased the mean maximum plasma concentration and area under the curve of orally administered digoxin, but did not alter kinetics of intravenous digoxin.
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