Stronger CYP3A4 inhibitors which include ketoconazole or itraconazole could be envisioned to have greater results than observed with saquinavir. A starting up dose of twenty five mg of VIAGRA need to be considered in patients using erythromycin or solid CYP3A4 inhibitors (such as saquinavir, ketoconazole, itraconazole) [see DOSAGE AND ADMINISTRATIO… Read More