Hold control (command on a Mac) and press the + key as many times as necessary to increase the font size.
Hold control (command on a Mac) and press the - key to reduce the font size. - hide

Beta Blockers in Graves' Disease



by Chalet A. DeCapito, PharmD; Timothy W. Lowrey, PharmD; and William J. Millard, Ph.D.

Inderal® (propranolol), a beta (β)-adrenergic blocking agent, is often used in patients with Graves’ disease. Such therapy is thought to result in more rapid relief of some of the signs and symptoms, but it has no effect on the fundamental disease. Presented below is an overview of β-adrenergic blocking agents, more commonly called β-blockers, in relation to the patient with Graves’ disease.

Mechanism

These medicines belong to a class of drugs called “β-blockers” because they block specific components of tissues called β-receptors and prevent adrenaline and other similar compounds from having an effect on different parts of the body. Graves’ disease patients have increased sensitivity to adrenaline, and along with increased thyroid hormone in their blood, this results in rapid heart beat, sweating, shakiness, anxiety, increased appetite, loss of weight, and intolerance to heat. β-blockers help to alleviate these symptoms when given along with antithyroid drugs or radioactive iodine in an effort to make the patient more comfortable while awaiting return to normal thyroid function. It should be pointed out that propranolol and other β-blockers do not have important antithyroid effects. However, they can cause a slight decrease in the conversion of the major thyroid hormone, thyroxine (T4) to its biologically active form triiodothyronine (T3).

Use or Indication

1. Thyroid storm.

2. Additive to treatment with radioactive iodine; β-blockers can be used to control symptoms for the 4-8 weeks between the administration of radioactive iodine and its subsequent effects.

3. Preparation of patients for surgical removal of the thyroid gland when antithyroid drugs cannot be used (allergies to the antithyroid drugs).

4. To slow rapid heartbeat.

Contraindications

Propranolol and other β-blockers should be used with great caution in patients with the following conditions:

1. Lung diseases such as emphysema and asthma, because these agents cause bronchioconstriction (narrowing of air passages in the lung).

2. Heart failure, unless secondary to hyperthyroidism.

Side Effects

Most people experience few or no side effects from this class of medications. However, any drug can sometimes cause unwanted effects. It is important to call your doctor if you develop a skin rash, shortness of breath, fever, wheezing, unusual bleeding or bruising, swelling of legs or ankles, sudden weight gain, impotence or decreased sexual ability, changes in vision, cold hands or feet, and numbness or tingling of the fingers or toes. Also, call your doctor if you develop nightmares, symptoms of depression, insomnia, unusual tiredness, headaches, or if you become confused.

Interactions

Patients with Graves’ disease are usually taking a variety of medications along with a β-blocker. Many of these medications can interact with each other producing unwanted side effects. It is very important in the course of developing a patient’s therapeutic drug regimen, that all additional drugs be thoroughly discussed with their doctor or pharmacist to provide the best treatment results. Outlined below is a short list of drugs which may interact adversely with β-blockers (this is not inclusive of all interactions that exist with β-blockers): oral anti-diabetics (e.g. Glucotrol® or Diabeta®) and insulin, β-agonists (e.g. Ventolin®), all narcotics, non-steroidal antiinflammatory drugs (e.g. Motrin ®), anti-convulsants (e.g. Dilantin ®), theophylline, antiarrhythmic agents such as quinidine (e.g. Quinora® or Quinaglute®), and antihypertensive agents.

Dosage Regimen An oral dose of 40-160 mg as a single or divided dose of propranolol (Inderal®) given daily for a period of several weeks to months helps to achieve symptomatic relief in most patients. Newer and longer acting β-blockers are equally effective in equivalent doses including atenolol (Tenormin®), nadolol (Corgard®), or metoprolol (Lopressor®).

Summary As the activity of the thyroid declines from specific thyroid drug therapy, the dose of the β-blocker may be reduced and finally stopped. It is important to note that ??blockers do not alter all the effects of excess thyroid activity, and in some patients may have no beneficial effects when given simultaneously with antithyroid drugs. Also, β-blockers can have some adverse effects, particularly in hyperthyroid patients with cardiac disease. Therefore, β-blockers are valuable in patients with Graves’ disease, but their main role is to enhance or support ongoing drug therapy of the disease.

Used with the permission of the authors:

Chalet A. DeCapito, PharmD; Timothy W. Lowrey, PharmD; and William J. Millard, PhD., Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL 32610 ©1992

Download as a PDF.

Recent News

Recent Forum Posts

  • What do you think of this theory?

    June 18, 2021, 4:39 p.m.

    (Edited) Hello - Thanks for being flexible on the username to help us avoid confusion with our other admin! I...

  • What do you think of this theory?

    June 17, 2021, 1:57 p.m.

    https://pubmed.ncbi.nlm.nih.gov/31482765/ 2019 study, another perspective on ATD treatment. Note especially...

  • What do you think of this theory?

    June 17, 2021, 12:32 p.m.

    Hi Kimberly—thanks for your reply June 11. Per your advice I’ll update my screen name, ellenb. Do I...

  • What do you think of this theory?

    June 11, 2021, 3:52 p.m.

    Hello and welcome! First, do you mind if we work with you to update your screen name to avoid confusion with...

  • What do you think of this theory?

    June 10, 2021, 6:39 p.m.

    Gianna— Hi, I'm trying to decide on treatment for Graves. Can you tell me— how was your...

  • What do you think of this theory?

    June 6, 2021, 10:10 a.m.

    Hi Sue, and hello everyone! This is my first ever post and I'm happy to be here! I was diagnosed with Grave's...

  • What do you think of this theory?

    June 6, 2021, 8:48 a.m.

    Thanks for the links, Kimberly….. I'll go check them out right now. Actually I don't have celiac...

  • What do you think of this theory?

    June 4, 2021, 4:59 p.m.

    Great to see you! I've not seen research on gluten intolerance and absorption, but there *have* been studies...

  • METHIMAZOLE long term??

    June 4, 2021, 11:47 a.m.

    Hi Conky, I have been on methimazole long term. I was diagnosed in 2013 and in 2019 my trabs was finally...

  • What do you think of this theory?

    June 4, 2021, 9:08 a.m.

    Wow - thank you for that info. I really know very little about mast cells and histamine but it's definitely...

  • What do you think of this theory?

    June 4, 2021, 4:03 a.m.

    This makes sense. Mast cells, which secrete histamine, affect T3 and gluten intolerance also has a histamine...

  • What do you think of this theory?

    June 3, 2021, 4:57 p.m.

    Been a looooooong time since I posted…. so grateful Kimberly is still here keeping this board alive!...

  • New TED diagnosis

    June 1, 2021, 6:45 p.m.

    Hello - I've not heard of patients using TEPEZZA (TM) *just* for swelling, but you might also check out our...

  • How do I support and rebuilt with my partner after years of Graves?

    June 1, 2021, 6:41 p.m.

    Hello and welcome - hopefully, others will chime in here, and you might also check out our Facebook group,...

  • Thyroid and soy

    June 1, 2021, 6:36 p.m.

    Hello and welcome - I think the concern with soy is more about its impact on absorption when you take your...

Questions? Problems? Please contact us at [email protected] or 877-643-3123.

GDATF on Facebook

Support the GDATF and become a member today!

© 2021 Graves' Disease & Thyroid Foundation