This medicine is a beta blocker used to treat high blood pressure, angina pectoris (chest pain), and congestive heart failure. It may also be used to treat other conditions as determined by your doctor.

Follow the directions for using this medicine provided by your doctor. SWALLOW WHOLE. Do not crush or chew before swallowing. If you have difficulty swallowing the tablet, it may be cut in half. Swallow the half tablet without crushing or chewing. TAKE THIS MEDICINE with food or milk.

WARNING: If you have angina or have had heart problems, do not suddenly stop using this medicine without first consulting your doctor. If your doctor decides you should no longer use this medicine, you must stop this medicine gradually according to your doctor's instructions. Some medicines or medical conditions may interact with this medicine. INFORM YOUR DOCTOR OR PHARMACIST of all prescription and over-the-counter medicine that you are taking. DO NOT TAKE THIS MEDICINE if you are also taking mibefradil. ADDITIONAL MONITORING OF YOUR DOSE OR CONDITION may be needed if you are taking amiodarone, barbiturates, birth control pills, cimetidine, disopyramide, flecainide, fluoxetine, indomethacin, methimazole, paroxetine, propafenone, propylthiouracil, quinidine, or verapamil, any other medicines to treat high blood pressure. Inform your doctor of any other medical conditions, allergies, pregnancy, or breast-feeding. USE OF THIS MEDICINE IS NOT RECOMMENDED if you have a history of extremely slow heartbeat, heart block, or other heart conditions (e.g., sick sinus syndrome, decompensated heart failure). ADDITIONAL MONITORING OF YOUR DOSE OR CONDITION may be needed if you have asthma, other lung disorders, diabetes, thyroid disease, or undergoing surgery. Contact your doctor or pharmacist if you have any questions or concerns about using this medicine.

If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include nausea, vomiting, slowed heart rate, difficulty breathing, bluish discoloration of skin, severe chest pain, loss of consciousness.

DO NOT STOP TAKING THIS MEDICINE without checking with your doctor. BEFORE YOU HAVE ANY MEDICAL OR DENTAL TREATMENTS, EMERGENCY CARE, OR SURGERY, tell the doctor or dentist that you are using this medicine. THIS MEDICINE MAY CAUSE drowsiness or dizziness. Do not drive, operate machinery, or do anything else that could be dangerous until you know how you react to this medicine. BEFORE TAKING ANY NEW MEDICINE, either prescription or over-the-counter, check with your doctor or pharmacist. This includes any medicines used to treat colds or congestion. IF YOUR DOCTOR HAS INSTRUCTED YOU TO CHECK your blood pressure and heart rate regularly, be sure to do so. FOR WOMEN: IF YOU PLAN ON BECOMING PREGNANT, discuss with your doctor the benefits and risks of using this medicine during pregnancy. THIS MEDICINE IS EXCRETED IN BREAST MILK. IF YOU ARE OR WILL BE BREAST-FEEDING while you are using this medicine, check with your doctor or pharmacist to discuss the risks to your baby. FOR PATIENTS WITH DIABETES MELLITUS: this medicine may mask signs of low blood sugar such as a rapid heartbeat. Check blood glucose levels regularly.

IF YOU MISS A DOSE OF THIS MEDICINE, take it if you remember the same day. If you do not remember until the next day, skip the missed dose. Do not take 2 doses at once.

STORE THIS MEDICINE at room temperature, away from heat and light.