Inderal (propranolol)

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Brand Name

Inderal {Wyeth}

Generic Name

propranolol, pronounced pro PRAN oh lol


What is Inderal?

Inderal is a medication to treat hypertension, or high blood pressure, angina, heart rhythm disorders, and other heart or circulatory conditions. It is also used to treat or prevent a heart attack, and to reduce the severity and frequency of migraine headaches.

Inderal may also be used for purposes not described in this medication guide.


Key Facts About Inderal

Inderal is in the group of medications called beta-blockers. Beta-blockers affect your heart and circulation by helping your blood to flow easier through your arteries and veins.

Inderal is in FDA pregnancy category C. You should not use Inderal if you are pregnant. If you become pregnant while taking Inderal you should stop taking this medication and contact your doctor right away. We do not yet know if Inderal can affect an unborn baby. You should not breast-feed while taking Inderal, as this medication can pass into breast milk.

While you are taking Inderal you should not drink alcohol as it may affect your blood levels of this medication.

Inderal may cause side effects that can impair your balance. Be cautious when getting up from a sitting or lying down position, and steady yourself to prevent a fall.

Continue to use Inderal as your doctor has directed, and be sure to get your blood pressure checked regularly.

You should not take Inderal if you have asthma, a slow heart rate, or a serious heart condition like “sick sinus syndrome” or “AV block” (unless you have a pacemaker).


Before You Take Inderal

If you are allergic to propranolol you should not take Inderal.

If you have asthma, bronchitis, emphysema, diabetes, myasthenia gravis, pheochromocytoma, a muscle disorder or depression you should inform your doctor.

Tell your doctor if you have problems with your circulation, such as Raynaud’s syndrome before starting treatment with Inderal.

You should inform your doctor if you have liver disease, kidney disease, or a thyroid condition before taking Inderal.

If you suffer from low blood pressure, slow heart beats, Sick sinus syndrome, congestive heart failure or have had a heart block you should tell your doctor before taking Inderal.

Continue to take Inderal even if you feel well. Stopping Inderal suddenly may cause adverse and unpleasant effects.

It is important for you to understand how Inderal fits into a complete program that your doctor may have prescribed for you. This program may include diet, exercise, and weight control. Be sure to follow your diet, medication, and exercise routines very closely.


Inderal Drug Interactions

You should inform your doctor if you are taking any of the following:

  • ACE inhibitors benazepril (Lotensin), captopril (Capoten), fosinopril (Monopril), enalapril (Vasotec), lisinopril (Prinivil, Zestril), moexipril (Univasc), perindopril (Aceon), quinapril (Accupril), ramipril (Altace), and trandolapril (Mavik)
  • amiodarone (Cordarone, Pacerone)
  • antidepressants like amitriptyline (Elavil, Vanatrip, Limbitrol), clomipramine (Anafranil), desipramine (Norpramin) and imipramine (Janimine, Tofranil)
  • aspirin
  • clonidine (Catapres)
  • digoxin (digitalis, Lanoxin)
  • disopyramide (Norpace)
  • dobutamine (Dobutrex)
  • doxazosin (Cardura)
  • haloperidol (Haldol)
  • heart or blood pressure medications like amlodipine
  • Norvasc, Caduet, Exforge, Lotrel, Tekamlo, Tribenzor, Twynsta, Amturnide), diltiazem (Cartia, Cardizem), nifedipine (Nifedical, Procardia), reserpine (Serpasil) and verapamil (Calan, Covera, Isoptin, Verelan)
  • isoproterenol (Isuprel)
  • MAO inhibitors like isocarboxazid (Marplan), tranylcypromine (Parnate), phenelzine (Nardil), and selegiline (Eldepryl, Emsam)
  • NSAIDs (non-steroidal anti-inflammatory drugs) such as ibuprofen (Advil, Motrin), naproxen (Aleve, Naprosyn, Naprelan, Treximet), celecoxib (Celebrex), diclofenac (Arthrotec, Cambia, Cataflam, Voltaren, Flector Patch, Pennsaid, Solareze), indomethacin (Indocin) and meloxicam (Mobic)
  • prazosin (Minipress)
  • propafenone (Rythmol)
  • quinidine (Quin-G)
  • terazosin (Hytrin)
  • warfarin (Coumadin, Jantoven)

Other drugs you take that are not listed may interact with Inderal. You should tell your doctor about all of the medications you use. This includes prescription drugs, vitamins, supplements and herbal products, and over the counter medications. You should not begin taking a new medication without telling your doctor first.


Directions for Taking Inderal

You should take Inderal exactly your doctor has told you to. It is important that you do not take Inderal in larger or smaller amounts, or for longer or shorter than recommended. Follow the directions on your prescription label and follow any dose changes carefully if your doctor instructs you to change your dose.

Inderal should be taken at the same time every day.

You may take Inderal with or without food. Take Inderal at the same time each day, and the same way each day.

You may need to take Inderal on a long-term basis for the treatment of high blood pressure. It is important that you follow up with your doctor on a regular basis to be sure that Inderal is helping your condition and not causing you to have any adverse or harmful effects.

Inderal may cause you to have altered results for certain laboratory tests. Be sure to tell any doctor or laboratory you see that you are being treated with Inderal.

Inderal should be stored at room temperature, and away from both moisture and heat.

If you miss a dose of regular or short-acting Inderal you should attempt to take the missed dose as soon as you remember. However, if it is almost time for your next scheduled dose, or your next dose is less than 4 hours away, you should skip the dose you missed. Never take extra Inderal to make up for a missed dose.


Inderal Side Effects

If you experience any of the following adverse effects you should stop taking Inderal and seek emergency medical help immediately.

  • allergic reaction including breathing difficulties, hives and swelling of your face, lips, throat or tongue
  • appetite loss
  • clay colored stools
  • cold feeling in your hands or feet
  • confusion
  • depression
  • feeling faint or light headedness
  • fast heartbeats
  • hallucinations
  • itching that is severe
  • jaundice
  • shortness of breath, even with mild exertion
  • skin reaction that is severe and includes a fever, sore throat, swelling in your face or tongue, burning in your eyes, skin pain, followed by a red or purple skin rash that spreads (especially in the face or upper body) and causes blistering and peeling.
  • slow or uneven heartbeats
  • stomach pain
  • swelling of your ankles or feet
  • urine which is dark

Less serious Inderal side effects may include:

  • constipation
  • decreased sex drive
  • diarrhea
  • impotence
  • insomnia
  • nausea
  • stomach cramps
  • tired feeling
  • vomiting

It should be noted that this is not a complete list of possible side effects of Inderal. You should contact your physician for a complete list and medical advice regarding these effects.


Inderal Description and Dosing

Inderal is available as 10 mg, 20 mg, 40 mg, 60 mg, and 80 mg tablets for oral administration. The dosages of Inderal tablets appear as follows:

Inderal 10 mg tablets are hexagonal-shaped, orange, scored and embossed with an “I” and imprinted with “Inderal 10”.

Inderal 20 mg tablets are hexagonal-shaped, blue, scored and embossed with an “I” and imprinted with “Inderal 20”.

Inderal 40 mg tablets are hexagonal-shaped, green, scored and embossed with an “I” and imprinted with “Inderal 40”.

Inderal 60 mg tablets are hexagonal-shaped, pink, scored and embossed with an “I” and imprinted with “Inderal 60”.

Inderal 80 mg tablets are hexagonal-shaped, yellow, scored and embossed with an “I” and imprinted with “Inderal 80”.

You should consult your doctor for specific dosing of Inderal. Do not attempt to alter or change your dose without your physician’s consent.

If you suspect that you have overdosed with Inderal you should seek emergency help immediately.


Ingredients in Inderal

Inderal contains propranolol hydrochloride as the active ingredient. Other ingredients include lactose, magnesium stearate, microcrystalline cellulose, and stearic acid. In addition, Inderal 10 mg and 80 mg Tablets contain FD&C Yellow No. 6 and D&C Yellow No. 10; Inderal 20 mg Tablets contain FD&C Blue No. 1; Inderal 40 mg Tablets contain FD&C Blue No. 1, FD&C Yellow No. 6, and D&C Yellow No. 10; Inderal 60 mg Tablets contain D&C Red No. 30.

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The information contained in this drug guide is intended as an educational resource only. This guide is not exhaustive and does not contain all available information about this drug.This guide is not intended as medical advice for individual conditions or treatment.

The information provided in this guide does not replace the need for the advice and services of medical professionals or the need for medical examination. Always talk to your physician or pharmacist before taking any prescription medication or over the counter drugs (including any supplements) or before making any changes to your treatment. Only your doctor, nurse or pharmacist can provide you with safe and effective advice regarding your drug treatment.

The use of the information in this guide is at your sole risk. This information is provided "AS IS" with no warranties to accuracy or timeliness.

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