Increased risk of hypotension w/ strong or moderate CYP3A4 inhibitors eg, PIs, azole antifungals, macrolides (ie, erythromycin, clarithromycin), verapamil, diltiazem. Varied plasma conc w/ strong CYP3A4 inducers eg, rifampicin,
Hypericum perforatum. Increased BP-lowering effects w/ grapefruit or grapefruit juice. Additive BP-lowering effects of other anithypertensives. Increased tacrolimus blood levels. Increased exposure of mechanistic target of rapamycin inhibitors eg, sirolimus, temsirolimus, everolimus. Increased trough conc of cyclosporin. Increased exposure to simvastatin.