Increased risk of rhabdomyolysis w/ potent CYP3A4 or transport protein inhibitors eg, ciclosporine, telithromycin, clarithromycin, delavirdine, stiripentol, ketoconazole, voriconazole, itraconazole, posaconazole & HIV PIs including ritonavir, lopinavir, atazanavir, indinavir, darunavir, tipranavir/ritonavir. May increase risk of myopathy w/ gemfibrozil & other fibric acid derivatives, antivirals for hepatitis C (eg, boceprevir, telaprevir, elbasvir/grazoprevir), erythromycin, niacin or ezetimibe. Reports of rhabdomyolysis w/ fusidic acid. Increased risk of angioedema w/ sacubitril/valsartan. May increase risk of angioedema w/ other NEP inhibitors eg, racecadotril; mTOR inhibitors eg, sirolimus, everolimus, temsirolimus. May affect or be affected by immunosuppressants for auto-immune disorders or following transplant surgery eg, ciclosporin, tacrolimus; ketoconazole, itraconazole, voriconazole, fluconazole, posaconazole; rifampicin, erythromycin, clarithromycin, telithromycin, fusidic acid, trimethoprim; colchicine; other medicines to regulate lipid levels eg, gemfibrozil, other fibrates, colestipol, ezetimibe; some Ca channel blockers for angina or high BP eg, diltiazem; medicines to regulate heart rhythm eg, digoxin, verapamil, amiodarone; medicines for HIV or liver disease eg, hepatitis C (eg, delavirdine, efavirenz, ritonavir, lopinavir, atazanavir, indinavir, darunavir, telaprevir, boceprevir & combination of elbasvir/grazoprevir); warfarin; OCs; stiripentol; cimetidine; phenazone; Al- & Mg-containing antacids;
Hypericum perforatum or St John's wort; dantrolene (infusion); other medicines for high BP including aliskiren, ARBs (eg, valsartan); K-sparing drugs (eg, triamterene, amiloride, eplerenone, spironolactone), K supplements or K-containing salt substitutes, other drugs which can increase K in the body (eg, heparin & co-trimoxazole), estramustine; lithium; medicines most often used for diarrhea (eg, racecadotril) or to avoid rejection of transplanted organs (eg, sirolimus, everolimus, temsirolimus & other mTOR inhibitors); medicines for diabetes eg, insulin, metformin or gliptines; sacubitril/valsartan; baclofen; NSAIDs (eg, ibuprofen) or high-dose aspirin; vasodilators including nitrates; medicines for mental disorders eg, depression, anxiety, schizophrenia (eg, TCAs, antipsychotics); medicines for low BP, shock or asthma eg, ephedrine, noradrenaline or adrenaline; gold salts (especially IV); allopurinol; procainamide. Increased blood levels of amlodipine which can increase BP-lowering effect w/ grapefruit juice & grapefruit. Avoid drinking too much alcohol during treatment.