Key Pharmacologic Principles and Drug-Drug Interactions in HIV Patient Care
Summary
- Bepridil is contraindicated with ritonavir, atazanavir, and fosamprenavir[DHHS ART]
- Nondihydropyridine calcium channel blockers (eg, diltiazem, verapamil) and dihydropyridine calcium channel blockers (eg, amlodipine, felodipine, nifedipine) have potential for drug interactions with antiretrovirals; concentrations may increase during coadministration with PIs, cobicistat/elvitegravir/emtricitabine/tenofovir DF, or cobicistat/elvitegravir/emtricitabine/tenofovir AF (Table 7)
- Calcium channel blockers should be initiated at a low dose in patients receiving PIs and should be used with caution in patients receiving cobicistat/elvitegravir/emtricitabine/tenofovir DF or cobicistat/elvitegravir/emtricitabine/tenofovir AF; when coadministered, patients should be followed closely for signs of cardiac toxicity
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