<p>Caution should be exercised before taking this drug if you are taking aliskiren, digoxin, lithium, other medicines for high blood pressure, NSAIDs (such as aspirin, ibuprofen, naproxen, others), corticosteroids (such as prednisone, hydrocortisone, others), angiotensin-converting enzyme (ACE) blockers (such as benazepril, enalapril, lisinopril) angiotensin II receptor blockers (such as losartan, olmesartan, valsartan). This product may interfere with certain laboratory tests (including parathyroid test, protein-bound iodide test), possibly causing false test results.</p>