PRECAUTIONS: Before taking nisoldipine, tell your doctor or pharmacist if you are allergic to it; or to other dihydropyridine calcium channel blockers (such as amlodipine, nifedipine); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: a certain structural heart problem (aortic stenosis).Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease.This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.Before having surgery, tell your doctor or dentist that you are taking this medication.During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.It is not known if this medication passes into breast milk. Consult your doctor before breast-feeding.
DRUG INTERACTIONS: See also the How to Use section.Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.This drug should not be used with the following medication because a very serious interaction may occur: phenytoin.If you are currently using phenytoin, tell your doctor or pharmacist before starting nisoldipine.Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use.Other medications can affect the removal of nisoldipine from your body, which may affect how nisoldipine works. Examples include cimetidine, azole antifungals (such as itraconazole), macrolide antibiotics (such as erythromycin), rifamycins (such as rifabutin), St. John's wort, drugs used to treat seizures (such as carbamazepine, phenytoin), among others.Check the labels on all your medicines (such as cough-and-cold products, diet aids, nonsteroidal anti-inflammatory drugs-NSAIDs for pain/fever reduction) because they may contain ingredients that could increase your blood pressure or heart rate (such as pseudoephedrine, phenylephrine, ibuprofen, naproxen). Ask your pharmacist about using those products safely.Cimetidine is a nonprescription drug that is commonly used to treat extra stomach acid. Because cimetidine may interact with nisoldipine, ask your pharmacist about other products to treat stomach acid.This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.
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