• you are allergic to any ingredient in Adalat.

Some medical conditions may interact with Adalat. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:

• if you are pregnant, planning to become pregnant, or are breast-feeding
• if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
• if you have allergies to medicines, foods, or other substances
• if you have kidney or liver disease (especially cirrhosis), coronary artery disease, congestive heart failure, or digestive problems
• if you have recently had or will be having surgery, or if you have recently stopped taking a beta-blocker (eg, propranolol).

Some medicines may interact with Adalat. Tell your health care provider if you are taking any other medicines, especially any of the following:

• acarbose (Precose);
• cimetidine (Tagamet);
• fentanyl (Actiq, Duragesic, Fentora) or other narcotic pain medications;
• digoxin (Lanoxin);
• nefazodone;
• St. John's wort;
• rifabutin (Mycobutin), rifampin (Rifadin, Rifater, Rifamate) or rifapentine (Priftin);
• a blood thinner such as warfarin (Coumadin);
• an antibiotic such as clarithromycin (Biaxin), dalfopristin/quinupristin (Synercid), or erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin);
• antifungal medication such as fluconazole (Diflucan), itraconazole (Sporanox), or ketoconazole (Nizoral);
• a beta-blocker such as atenolol (Tenormin, Tenoretic), carvedilol (Coreg), labetalol (Normodyne, Trandate), metoprolol (Lopressor, Toprol), nadolol (Corgard), propranolol (Inderal, InnoPran), sotalol (Betapace), timolol (Blocadren), and others;
• a heart rhythm medication such as quinidine (Quin-G) or flecaininde (Tambocor);
• HIV/AIDS medicine such as atazanavir (Reyataz), delavirdine (Rescriptor), fosamprenavir (Lexiva), indinavir (Crixivan), nelfinavir (Viracept), or ritonavir (Norvir, Kaletra, or saquinavir (Invirase);
• medicines used to prevent organ transplant rejection, such as sirolimus (Rapamune) or tacrolimus (Prograf);
• other heart or blood pressure medications such as benazepril (Lotensin), diltiazem (Cartia, Cardizem), doxazosin (Cardura), or verapamil (Calan, Covera, Isoptin, Verelan); or
• seizure medication such as carbamazepine (Carbatrol, Tegretol), phenobarbital (Solfoton), or phenytoin (Dilantin).

This list is not complete and other drugs may interact with Adalat. Tell your doctor about all medications you use.

Important safety information:

• Adalat may cause dizziness or lightheadedness. These effects may be worse if you take it with alcohol or certain medicines. Use Adalat with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.
• Proper dental care is important while you are taking Adalat. Brush and floss your teeth and visit the dentist regularly.
• Use Adalat with caution in the elderly.
• Adalat should not be used in children; safety and effectiveness in children have not been confirmed.
• Pregnancy and breast-feeding: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using Adalat while you are pregnant. It is not known if Adalat is found in breast milk. If you are or will be breast-feeding while you use Adalat, check with your doctor. Discuss any possible risks to your baby.

Call your doctor at once if you have a serious side effect while using Adalat such as:

• worsening angina;
• feeling like you might pass out;
• feeling short of breath, swelling in your hands or feet;
• fast or pounding heartbeats;
• numbness or tingly feeling;
• jaundice (yellowing of the skin or eyes); or
• chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling.

Less serious side effects may include:

• headache, dizziness;
• drowsiness, tired feeling;
• nausea, constipation, diarrhea, stomach pain;
• sleep problems (insomnia);
• mild rash or itching;
• joint pain, leg cramps;
• warmth, redness, or tingly feeling under your skin; or
• urinating more than usual.

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider.