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Generic name Propranolol (propran-l-ol)
Brand names: Inderal La, Inderal XL
Drug Classes: Group I antiarrhythmics Non Cardioselective beta blockers

Inderal has been stopped by the U.S. There may be equivalents if generic versions have been approved and marketed by the FDA.

What is Inderal?

Inderal is also a beta blocker. Beta-blockers can affect the heart, circulation (blood flow in arteries and veins), and blood pressure.

Inderal can be used to treat heart rhythm disorders and other conditions, such as tremors. It is also prescribed for angina, hypertension, or heart rhythm disorders. It can also be used to prevent a heart attack and reduce the severity of headaches.

Inderal LA is a long-acting, sustained-release capsule taken once daily. The dose for angina can be increased gradually to three- to seven-day intervals.Inderal is available as a capsule with extended release. It is used to treat hypertension. Inderal is taken at night.


Inderal should not be used if you suffer from asthma, slow heartbeats, or serious heart conditions such as "sick-sinus syndrome" or an "AV block".Propranolol can mask hypoglycemia symptoms in diabetics. Tell your doctor if you notice any changes in your blood sugar level.

Use Inderal as directed. Inform your doctor of any other medications you are taking or if you have any other medical conditions or allergies.

Before you take this drug

Inderal should not be used if:

  • Asthma;
  • You have fainted before because of a history of slow heartbeats.
  • If you have suffered a severe heart attack, then you may need to be hospitalized.
  • A serious heart condition, such as "sick-sinus syndrome" or a second- or third-degree heart block.

Tell your doctor about any of the following to ensure that Inderal will be safe for you:

  • Slow heartbeats and congestive heart failure
  • Bronchitis, emphysema, or other breathing disorders
  • Propranolol may make it difficult to detect low blood sugar.
  • Liver or kidney disease
  • A thyroid disorder
  • Pheochromocytoma is a tumor of the adrenal gland.
  • Problems with circulation (such as Raynaud syndrome);
  • If you smoke.

Inform your doctor if you are pregnant or nursing.

How to take Inderal?

Follow the directions on your prescription label and read all medication guides or instructions sheets. Read all the instructions and directions that come with your prescription. Sometimes your doctor will change the dose.Inderal can be taken by adults with or without food. However, it must always be taken the same way.

Weight is used to determine the dose for children. If your child loses or gains weight, the dose may change.You will need to check your heart and blood pressure regularly.Inform your doctor of any planned surgeries.

You may worsen your condition if you suddenly stop taking Inderal. Before stopping your medicine, consult with your doctor.Propranolol may affect certain medical tests. Inform any doctor that you see about Inderal.Even if you are feeling well, continue to take this medication if you have high blood pressure. Often, high blood pressure has no symptoms.Store at room temperature, away from heat or moisture.

What happens if I miss the dose?

If you are almost due for your next dose, skip the missed one. Never take two doses of the same medicine at once.

What happens if I overdose?

Call 1-800-222-1222 for poison help or seek immediate medical attention.Overdose symptoms include tremors and a fast or slow pulse, as well as feeling lightheaded or restless.

What should be avoided?

Avoid alcohol. Alcohol can increase the blood level of propranolol.

Side effects of Inderal

If you experience signs of an allergy to Inderal, such as hives, difficulty breathing, swelling on your face or in your throat, or a severe reaction, such as a skin reaction, fever, burning eyes, pain, or rashes with blisters and peeling, seek emergency medical attention.

If you experience:

  • Slow or irregular heartbeats
  • A feeling of lightheadedness, as if you could pass out.
  • Wheezing or difficulty breathing
  • Sudden weakness, loss of coordination, or vision problems
  • Cold feeling in the hands and feet
  • Depression, confusion, hallucinations;
  • Heart problem: rapid weight gain and a feeling of shortness of breath.
  • Low sugar; headache; dizziness; rapid heart rate; and feeling anxious.
  • Low sugar in a child; pale, blue, or purple skin; sweating; fussiness; crying and not wanting to eat.

Inderal may cause side effects such as:

  • Dizziness, tiredness;
  • Nausea, vomiting, diarrhea, constipation, and stomach cramps;
  • Sleep problems (insomnia);
  • Runny or stuffy nasal discharge, cough, sore throat, and hoarse vocalization

There may be other side effects. Call your doctor for medical advice about side effects. To report side effects, you can contact the FDA at 1-800-FDA-1088.

Interaction with other drug

It is sometimes not safe to take certain medications at the same time. Some drugs may affect the blood levels of drugs that you are taking, which can increase side effects and make them less effective.

Tell your doctor about all medications you take. Propranolol can be affected by many drugs, including:

  • Colestipol or cholestyramine
  • Warfarin (Coumadin, Jantoven);
  • Antidepressants are a type of medication.
  • Heart or blood pressure medication;
  • Medicine to treat an infection
  • Medicine to treat a prostate disorder;
  • Steroid medicine;
  • Nsaids are nonsteroidal anti-inflammatory medications. These include aspirin (Advil), ibuprofen, naproxen, diclofenac (Indomethacin), celecoxib (Aleve), and many others.

This list does not include all possible interactions with propranolol. These include prescription and over-the-counter medicines, vitamins, and herbal products. This list is not exhaustive.