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More powerful CYP3A4 inhibitors such as ketoconazole or itraconazole may very well be anticipated to own bigger effects than found with saquinavir. A starting off dose of 25 mg of VIAGRA really should be regarded as in sufferers having erythromycin or sturdy CYP3A4 inhibitors (for example saquinavir, ketoconazole, itraconazole) [see DOSAGE AND ADMI