Blandt personer behandlet med terazosin blev hypotension observeret hyppigere, når vardenafil og terazosin blev givet samtidig, end når doseringerne var separeret med et tidsinterval på 6 timer.
Among subjects treated with terazosin, hypotension was observed more frequently when vardenafil and terazosin were given simultaneously than when the dosing was separated by a time interval of 6 hours.