Do not use aliskiren in patients w/ DM & kidney problems. Avoid w/ lithium, K-sparing drugs (eg, triamterene, amiloride), K supplements or K-containing salt substitutes, drugs w/ increase K in the body (heparin, co-trimoxazole), dantrolene (infusion), estramustine, racecadotril or avoid rejection of transplanted organs (eg, sirolimus, everolimus, temsirolimus & other drugs belonging to mTOR inhibitors), sacubitril/valsartan; ACE inhibitor, angiotensin receptor blockers. Caution w/ ARB, aliskiren, diuretics; eplerenone & spironolactone; anesth; iodinated contrast agent; bepridil; moxifloxacin, sparfloxacin; methadone; dofetilide, ibutilide, bretylium, cisapride, diphemanil, procainamide, quinidine, hydroquinidine, disopyramide, amiodarone, sotalol; verapamil, diltiazem; digoxin or other cardiac glycosides; rifampicin, erythromycin, clarithromycin; itraconazole, ketoconazole, amphotericin B (inj); allopurinol; mizolastine, terfenadine or astemizole; corticosteroids & NSAIDs (eg, ibuprofen) or high dose salicylates (eg, ASA); immunosuppressants (eg, ciclosporin, tacrolimus); tetracosactide, gold salts (IV admin); halofantrine; baclofen; insulin or metformin; Ca including Ca supplements; stimulant laxatives (eg, senna); medicines for cancer; vincamine; medicines to treat mental disorders (eg, TCAs, antipsychotics, imipramine-like antidepressants, neuroleptics); pentamidine; ritonavir, indinavir, nelfinavir;
H. perforatum; trimethoprim; ephedrine, noradrenaline or adrenaline; nitroglycerin & other nitrates or other vasodilators. Increased BP lowering effect w/ grapefruit or grapefruit juice.