Research Article

Herb-Drug Interaction of Paullinia cupana (Guarana) Seed Extract on the Pharmacokinetics of Amiodarone in Rats

Figure 5

Mean plasma concentration-time profiles of amiodarone and mono-N-desethylamiodarone (MDEA) obtained, over a period of 24 h, from rats submitted to a 14-day pretreatment period with Paullinia cupana extract (821 mg/kg/day, p.o.), or vehicle (0.5% carboxymethylcellulose aqueous solution), and treated on the 15th day with a single dose of amiodarone (50 mg/kg, p.o.) by oral gavage ( ). Symbols represent the mean values ± standard error of the mean (SEM) of six determinations per time point ( ).
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