More powerful CYP3A4 inhibitors which include ketoconazole or itraconazole might be predicted to obtain larger results than witnessed with saquinavir. A starting dose of twenty five mg of VIAGRA should be regarded as in sufferers having erythromycin or robust CYP3A4 inhibitors (including saquinavir, ketoconazole, itraconazole) [see DOSAGE AND ADMIN… Read More