There are numerous risks in taking counterfeit Viagra. Fake tablets can contain no Viagra or too much Viagra. One in ten patients will experiencethe common side effects of Viagra. Side effects include the development of a rash, diarrhoea and an increased susceptibility to urinary tract infections. If you suspect you have been provided counterfeit tablets,...

Sildenafil is indicated for the treatment of erectile dysfunction in adult males. In volunteers with hepatic cirrhosis (Child-Pugh A and B), sildenafil clearance was reduced, resulting in increases in AUC (85%) and Cmax (47%) compared to age matched volunteers with no hepatic impairment. The pharmacokinetics of sildenafil in patients with severe hepatic impairment have not...