180 ml 40% alkohol [vodka] til en mand på 80 kg), men hos nogle forsøgspersoner blev der observeret ortostatisk svimmelhed og ortostatisk hypotension.
Tadalafil (20 mg) did not augment the mean blood pressure decrease produced by alcohol (0.7 g/ kg or approximately 180 ml of 40% alcohol [vodka] in an 80-kg male) but in some subjects, postural dizziness and orthostatic hypotension were observed.