Increased exposure to simvastatin. Increased BP-lowering effects w/ grapefruit or grapefruit juice. Increased systemic exposure in elderly hypertensive patients w/ diltiazem. Increased plasma conc by strong CYP3A4 inhibitors eg, ketoconazole, itraconazole, ritonavir. Increased risk of hypotension w/ clarithromycin. Decreased plasma conc by CYP3A4 inducers eg, rifampicin,
Hypericum perforatum. Affected trough conc of cyclosporin. Increased tacrolimus blood levels. Increased exposure of mTOR inhibitors eg, sirolimus, temsirolimus, everolimus.