Tapazole

(methimazole)

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Lowers thyroid hormone levels.

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Our bottom line

Tapazole (methimazole) is an effective medicine for lowering thyroid hormone levels, but it requires frequent blood tests and monitoring for serious side effects.

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Quick facts about Tapazole
  • Drug class: Endocrine
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (methimazole)

Upsides

  • Tapazole (methimazole) can be an effective oral treatment for some patients with hyperthyroidism who don't want to do surgery to remove their thyroid.
  • Tapazole (methimazole) is preferred for children since other antithyroid medicines can cause serious liver damage.
  • Generally safe to use in pregnant women who are more than 3 months into their pregnancy and in those who are breast-feeding.
  • Tapazole (methimazole) is an affordable medication even for those without insurance.
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Downsides

  • Your dose may change a lot in the beginning when you first start taking Tapazole (methimazole).
  • You will need to get frequent blood tests to make sure you're getting the right dose.
  • Tapazole (methimazole) isn't a recommended treatment option during the first three months of pregnancy.
  • DRUG_ NAME can lower your ability to fight off infections.
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What to expect from Tapazole, on one page

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How it works

Tapazole (methimazole) is an anti-thyroid medicine. It blocks the thyroid gland from making thyroid hormones.

Quick facts about Tapazole
  • Drug class: Endocrine
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (methimazole)

Used for

Dosage forms

  • Pill
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Prices and coupons

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What to expect when you take Tapazole (methimazole) for Hyperthyroidism

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  • First few hoursHours
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  • Effectiveness
  • Starts to kick in
    Full effects
  • First few hoursHours
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  • Possible side effects
  • Skin rash
  • Hives
  • Nausea
  • Vomiting
  • Heartburn
  • Joint pain
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Side effect rates for Tapazole (methimazole)

Risks and Warnings for Tapazole (methimazole)

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    • Higher risk if:
    • › Those who are taking Coumadin

    Tapazole (methimazole) can increase the risk of bleeding if you are also taking Coumadin. Tell your doctor right away if you experience bruising, dark stools, pink or red colored urine, or unusual bleeding from your nose or gums.

Common concerns from people taking Tapazole (methimazole)

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Pain
  • Tell your doctor right away if you develop a sore throat or fever while taking Tapazole (methimazole).