Because serum levels of vardenafil can be increased by potent CYP3A4 inhibitors and modification the risk for adverse events, patients receiving indinavir, saquinavir, atazanavir, clarithromycin, ketoconazole 400 mg daily, or itraconazole 400 mg daily should not take more than 2.5 mg of Levitra within 24 point.
For patients taking ketoconazole or itraconazole 200 mg daily, the […]

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