More powerful CYP3A4 inhibitors like ketoconazole or itraconazole may very well be expected to possess increased effects than found with saquinavir. A setting up dose of 25 mg of VIAGRA needs to be considered in sufferers using erythromycin or sturdy CYP3A4 inhibitors (which include saquinavir, ketoconazole, itraconazole) [see DOSAGE AND ADMINISTRA

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