Hos frivillige forsøgspersoner med let til moderat nedsat nyrefunktion (kreatininclearance = 30- 80 ml/ min) ændres farmakokinetikken ikke efter en enkelt oral dosis på 50 mg.
In volunteers with mild to moderate renal impairment (creatinine clearance = 30-80 ml/ min), the pharmacokinetics of sildenafil were not altered after receiving a 50 mg single oral dose.