Before taking aliskiren,
tell your doctor and pharmacist if you are allergic to aliskiren, an angiotensin-converting enzyme (ACE) inhibitor such as benazepril (Lotensin, in Lotrel), captopril (Capoten), enalapril (Vasotec, in Vaseretic), fosinopril, lisinopril (in Prinzide, in Zestoretic), moexipril (Univasc, in Uniretic), perindopril (Aceon), quinapril (Accupril, in Accuretic, in Quinaretic), ramipril (Altace), and trandolapril (Mavik, in Tarka);, any other medications, or any of the ingredients in aliskiren tablets. Ask your pharmacist or check the patient information for a list of the ingredients.
tell your doctor if you have diabetes (high blood sugar) and you are taking an angiotensin receptor blocker (ARB) such as azilsartan (Edarbi, Edarbyclor), candesartan (Atacand, in Atacand HCT), eprosartan (Teveten, in Teveten HCT), irbesartan (Avapro, in Avalide), losartan (Cozaar, in Hyzaar), olmesartan (Benicar, in Azor, Benicar HCT), telmisartan (Micardis, in Micardis HCT), and valsartan (Diovan, in Diovan HCT, Exforge); or an ACE inhibitor. Your doctor will probably tell you not to take aliskiren if you have diabetes and you are taking one of these medications.
tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: certain antifungals such as itraconazole (Sporanox); aspirin and other nonsteroidal anti-inflammatory medications (NSAIDs, such as ibuprofen (Advil, Motrin) and naproxen (Aleve, Naprosyn); atorvastatin (Lipitor, in Caduet, Liptruzet); celecoxib (Celebrex); cyclosporine (Gengraf, Neoral, Sandimmune); diuretics ('water pills'); potassium supplements or potassium-containing medications; and any other medications for heart disease or high blood pressure. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
tell your doctor if you have or have ever had diabetes, seizures, a heart attack or heart failure, or kidney disease.
tell your doctor if you plan to become pregnant or if you are breast-feeding. Do not breast-feed while taking aliskiren.
you should know that diarrhea, vomiting, not drinking enough fluids, and sweating a lot can cause a drop in blood pressure, which may cause lightheadedness and fainting. Tell your doctor if you have any of these problems or develop them during your treatment.