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Inderal is a beta-blocker, used in the treatment of hypertension (high blood pressure), angina (chest pain), irregular heartbeats, migraines, and tremor, and to reduce the risk of a recurrent heart attack. Inderal may also be prescribed for other purposes.

Take exactly as instructed. Take each dose with a full glass of water, with or without food. Take Inderal at the same time every day whenever possible. Do not crush, chew, break, or open the long-acting or extended-release capsules (Inderal LA, InnoPran XL). Swallow them whole. Do not stop taking Inderal without first talking to your physicain (see "warnings" section).

Store at room temp. away from moisture and heat.

Take the missed dose as soon as you remember. However, if it is almost time for the next dose, skip the missed dose and take only the next regularly scheduled dose. Taking a double dose is very dangerous.

If any of the following serious side effects occur, stop taking Inderal and contact a physicain immediately: an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; hives); wheezing or shortness of breath; an unusually slow or irregular heart beat; swelling of the feet or lower legs; leg pain or cramping; sudden weight gain (more than 2 pounds in one day or 5 pounds in one week); chest (heart) pain; unusually cold or blue feet and hands; or skin rash. If any of the following milder side effects occur, keep using Inderal as directed, and consult a physicain: fatigue or confusion; headache or dizziness; weak pulse or mildly slow heart rate; diarrhea, constipation, gas, nausea, or vomiting; depression; nightmares; or impotence (difficulty obtaining or maintaining an erection). Other side effects are possible. Consult a physicain about any side effect that seems unusual or that bothers you in particular.

Do not take Inderal if you are taking thioridazine (Mellaril): the combination could result in dangerous, even fatal, irregular heartbeats. Before taking Inderal, tell your physicain if you are taking: another heart medicine such as nifedipine (Procardia, Adalat), reserpine (Serpasil), verapamil (Calan, Verelan, Isoptin), diltiazem (Cardizem, Dilacor XR), clonidine (Catapres), or digoxin (Lanoxin); a diabetes medication such as insulin, glyburide (Diabeta, Micronase, Glynase), glipizide (Glucotrol), chlorpropamide (Diabinese), or metformin (Glucotrol); a nonsteroidal anti-inflammatory drug (NSAID) such as ibuprofen (Motrin, Advil, others), naproxen (Aleve, Anaprox, Naprosyn, others), or ketoprofen (Orudis, Orudis KT, Oruvail); a respiratory medication such as albuterol (Ventolin, Proventil, Volmax, others), bitolterol (Tornalate), metaproterenol (Alupent, Metaprel), pirbuterol (Maxair), terbutaline (Brethaire, Brethine, Bricanyl), or theophylline (Theo-Dur, Theochron, Theolair, others), and others; warfarin (Coumadin); haloperidol (Haldol); or a prescription or over-the-counter cough medication, cold medicine, or diet pill. If you are taking any of the drugs listed above, your physicain may tell you not to take Inderal, or you may need a dosage adjustment or special care during your Inderal treatment. Other drugs may also interfere with your Inderal treatment. Talk to your physicain and pharmacist before taking any prescription or over-the-counter medicines, including herbal products.

Inderal may cause drowsiness, dizziness, and blood pressure changes. Use caution when driving, operating machinery, etc., until you know how Inderal affects you. If you experience drowsiness or dizziness, avoid these activities. Alcohol may increase drowsiness and dizziness while taking this medication; limit alcohol consumption. Tell your physicain and dentist that you are taking this medication before having surgery. Quitting Inderal abruptly is very dangerous. Do not stop taking Inderal before talking to your physicain. Call your physicain immediately if you experience shortness of breath. Before taking Inderal, tell your physicain if you have asthma; heart problems such as low blood pressure, a slow heart rate, heart block, sick sinus syndrome, a pacemaker, heart failure, or others; diabetes; depression; thyroid disease; kidney disease; liver disease; or any type of circulation problems. If you have any of the conditions listed above, you may be told you cannot take Inderal, or you may need a dosage adjustment or special care during your Inderal treatment. It is not known whether Inderal is safe for use in pregnant women. If you are pregnant or might become pregnant, consult a physicain before taking Inderal. Inderal passes into breast milk and may affect a nursing infant. Do not take this medication without first talking to your physicain if you are breast-feeding a baby. In case of an overdose, seek emergency medical attention. Symptoms of an Inderal overdose include a slow heartbeat, shortness of breath, fainting, dizziness, weakness, confusion, nausea, and vomiting.