A nurse or other trained health professional will give you this medicine. Your doctor will prescribe your exact dose and how often it should be given. This medicine is given through a needle or a catheter (plastic tube) placed in one of your veins.
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
Make sure your doctor knows if you use medicine for your heart or blood pressure, such as reserpine or verapamil. Tell your doctor if you are using haloperidol (Haldol®). There are many other drugs that can interact with propranolol, such as Thorazine®, cimetidine (Tagamet®), or theophylline (Slo-Bid®, Theo-Dur®). Make sure your doctor knows about all other medicines you are using.
Make sure your doctor knows if you are pregnant or breast feeding, or if you have liver problems or high blood pressure. Tell your doctor if you have a history of chest pain (angina), enlarged heart, congestive heart failure, heart attack, or heart rhythm problems such as heart block or Wolff-Parkinson-White syndrome. Tell your doctor if you have a history of lung problems, such as emphysema, asthma, or chronic bronchitis. Make sure your doctor knows if you have a history of diabetes, kidney problems, thyroid problems, or Down syndrome.
If you are given this medicine in tablet form to use at home, do not stop using this medicine suddenly without asking your doctor. You may need to slowly decrease your dose before stopping it completely.
This medicine may raise or lower your blood sugar, or it may cover up symptoms of very low blood sugar (hypoglycemia).
Make sure any doctor, dentist, or eye professional who treats you knows that you are using this medicine. You may need to stop using this medicine several days before having surgery. This medicine may cause problems with certain medical tests, such as thyroid tests and glaucoma tests.