We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is Methimazole?

Mary McMahon
By
Updated May 17, 2024
Our promise to you
WiseGEEK is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGEEK, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Methimazole is a prescription medication most commonly used in the treatment of hyperthyroidism, as it suppresses activity in the thyroid gland and limits the production of thyroid hormones. One brand name used in reference to this medication is Tapazole, and others may be used as well, depending on the region where a patient is receiving care. This medication may not have a curative effect for a patient with hyperthyroidism, depending on the cause of the condition, and patients need to be monitored while they take the medication for signs of complications.

This medication is available in the form of tablets taken orally. Patients on methimazole may experience side effects like skin cracking and peeling, fatigue, nausea, weight loss, stomach pain, joint pain, rashes, and itching. More seriously, patients sometimes develop dizziness, low white blood cell counts, and immune dysfunction. While side effects are relatively rare, patients need to be alert and they should report any side effects experienced to their doctors. This medication can also interact adversely with some other prescription and over-the-counter medications. It is important for patients to alert their doctors and pharmacists to all medications they take, in case there is a risk of a drug interaction.

For patients with thyroid cancers, methimazole will control the immediate symptoms of hyperthyroidism, but it will not address the cancer. The patient may need surgery, radiation, and other treatments to remove the thyroid gland or limit its function. In other patients, like people with Grave's disease, the methimazole can manage the condition effectively.

Pregnant and breastfeeding women should not use this medication. Clinical studies have shown that methimazole is dangerous for the developing fetus and can cause birth defects. Women on this medication should take birth control to avoid getting pregnant and should consult a doctor as soon as possible if their birth control fails. Likewise, use of this medication should be discontinued during breastfeeding, as it may harm the infant.

People can store methimazole in a cool, dry place. It should not be kept in a location with a humid environment like the bathroom or kitchen, and should be kept out of reach of other members of the household. In a house where multiple people take medications, it can be helpful to store the drugs separately to avoid accidents, and pill organizers should always be clearly labeled, as well as color coded, so they are not confused.

WiseGEEK is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Mary McMahon
By Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a WiseGEEK researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

Discussion Comments

Mary McMahon

Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a...

Learn more
WiseGEEK, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGEEK, in your inbox

Our latest articles, guides, and more, delivered daily.