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Methimazole

Brand names: Methimazole

Thyroid Hormone Synthesis Inhibitor Oral

At a glance

Medicare prescriptions, 2024
659,491
Medicare drug cost
$7.2M
Average cost per prescription
$10.89
Clinicians who prescribed it
18,092

Where it is prescribed

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List the prescribers in any state, county, city or ZIP code →

What it is used for

Methimazole tablets are indicated: In patients with Graves’ disease with hyperthyroidism or toxic multinodular goiter for whom surgery or radioactive iodine therapy is not an appropriate treatment option. To ameliorate symptoms of hyperthyroidism in preparation for thyroidectomy or radioactive iodine therapy.

From the FDA-approved prescribing information (label dated August 2026). Full labels on DailyMed (opens in a new tab)

Who prescribes it

All prescribers, by place, name or specialty →

Share of Medicare prescriptions written by each specialty. Select one to list its prescribers.

Trend, 2019–2024

Medicare prescriptions rose 30% from 2019 to 2024.

Medicare Part D prescriptions per year, all prescribers
  • 2019724,697
  • 2020745,903
  • 2021761,115
  • 2022800,876
  • 2023864,766
  • 2024943,189

Biggest change by state since 2019

  • Oregon +46%
  • Michigan +44%
  • Florida +44%
  • Maryland +44%
  • Minnesota +43%
  • Pennsylvania (smallest change) +15%
  • New York (smallest change) +19%

From CMS’s yearly state and national Part D summaries, which count every prescriber, including those CMS leaves out of its per-clinician data (fewer than 11 prescriptions). That is why these totals are higher than the count at the top of this page. Prescriptions include refills.

What it looks like

Pills from 4 makers on file. The same medicine can look different depending on who made it, so check the imprint (the letters and numbers on the pill) with your pharmacist if a refill looks different.

Aiping Pharmaceutical, Inc.

StrengthLooks likeImprint
5 mgwhite round tablet, 7 mm, scored to split in 2VM
10 mgwhite round tablet, 7 mm, scored to split in 2XM

Felix Pharmaceuticals Private Limited

StrengthLooks likeImprint
5 mgyellow solution

Mwi/vetone

StrengthLooks likeImprint
5 mgyellow solution

Remedyrepack Inc.

StrengthLooks likeImprint
5 mgwhite round tablet, 6 mm, scored to split in 2EM 5

Source: DailyMed (U.S. National Library of Medicine), from each maker’s FDA drug listing. A few makers are shown, not every one. Never take a pill you can’t identify; ask a pharmacist.

Industry payments about this drug

No industry payments to clinicians named this drug in 2025.

Recalls and shortages

Not on the FDA drug shortage list.

No FDA-reported recalls since 2020.

Sources: CMS Medicare Part D Prescribers by Provider and Drug (2024; prescriptions include refills, and CMS hides counts under 11 per prescriber); U.S. Food and Drug Administration, openFDA (drug labels, NDC directory, enforcement reports, drug shortages); CMS Open Payments 2025; ClinicalTrials.gov. General information only, not medical advice; not yet reviewed by our medical reviewer.