VIAGRA really should not be used with REVATIO or with other PAH treatment plans that contains sildenafil or every other PDE5 inhibitors (which include Adcirca® [tadalafil]) Hence, the metabolite is to blame for about 20% of sildenafil's action. Sildenafil is excreted as metabolites predominantly while in the feces (about eighty% https://pennd840yyw4.wikissl.com/user