Is Viagra harmful to the liver?

[GP7852]

Does anybody know if Viagra or one of the similar products is harmful to a damaged hep c liver?I went looking for info online and came upon this guy named Lloyd Wright who wrote a book on Hep C who said that studies showed that Viagra increases your viral load.Now he is not a doctor so I wondered if anybody has posed this question to their doctor.
                                     Glen

[Serg67]

Viagra has some side effects, including hepatotoxicity, acute liver injury. It seems not useful for liver, damaged by HCV. See http://livertox.nih.gov/Sildenafil.htm

[hrsepwrguy]

Hepatic Impairment

In volunteers with hepatic impairment (Child-Pugh Class A and B), sildenafil clearance was reduced, resulting in higher plasma exposure of sildenafil (47% for Cmax and 85% for AUC). The pharmacokinetics of sildenafil in patients with severely impaired hepatic function (Child-Pugh Class C) have not been studied. A starting dose of 25 mg should be considered in patients with any degree of hepatic impairment [see Dosage and Administration (2.5) and Clinical Pharmacology (12.3)].

http://www.drugs.com/pro/viagra.html

[hrsepwrguy]

Lloyd Wright is a quack who profits off of other people's misery, with absolutely no chance of curing them

[AWorriedMom]

I have no idea bit Mr. Wright has been extremely controversial for many years. Ask your doc or your pharmacist.