More powerful CYP3A4 inhibitors which include ketoconazole or itraconazole might be envisioned to get greater results than found with saquinavir. A starting up dose of twenty five mg of VIAGRA should be deemed in clients getting erythromycin or strong CYP3A4 inhibitors (such as saquinavir, ketoconazole, itraconazole) [see DOSAGE AND ADMINISTRATION,

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