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More robust CYP3A4 inhibitors which include ketoconazole or itraconazole may be predicted to get higher outcomes than seen with saquinavir. A starting up dose of twenty five mg of VIAGRA ought to be regarded in sufferers getting erythromycin or strong CYP3A4 inhibitors (like saquinavir, ketoconazole, itraconazole) [see DOSAGE AND ADMINISTRATION, Sc