You should not use this medicine if you have ever had an allergic reaction to nicardipine or to similar medicines (such as verapamil, Adalat®, Calan®, Cardizem®, Lotrel®, Plendil®, Procardia®), or if you have a heart condition called aortic stenosis (narrowing of a valve in your heart).
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
There are many other medicines that can interact with nicardipine. Make sure your doctor knows about ALL other medicines you are using. This includes over-the-counter medicines that can increase your blood pressure (such as diet pills, cold and allergy medicines, or asthma medicines).
Do not drink alcohol while you are using this medicine.