More robust CYP3A4 inhibitors for instance ketoconazole or itraconazole could be expected to possess better results than noticed with saquinavir. A commencing dose of twenty five mg of VIAGRA must be viewed as in clients getting erythromycin or potent CYP3A4 inhibitors (for instance saquinavir, ketoconazole, itraconazole) [see DOSAGE AND ADMINISTRA

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