Tapazole (Methimazole) prescription available online
*Prescriptions are provided at the doctor’s discretion. Learn more about our controlled substances policy and how you can save up to 80% with our prescription discount card. Please note that our primary care physicians may be able to help provide refills of this medication for patients with hyperthyroidism that has been under control, but the initiation and dose adjustments of this medication is usually done by a specialist such as an endocrinologist. PlushCare does not have any endocrinologists at this time.
About methimazole (Tapazole)
Methimazole is an antithyroid agent that prevents the thyroid gland from producing too much thyroid hormone.
Methimazole is used to treat hyperthyroidism. Methimazole is available only by prescription. It is available in a generic formulation and under different brand names, including Tapazole.
Methimazole may be prescribed as an oral tablet or liquid suspension. It’s always important to follow the specific instructions on your prescription, as they can vary based on the formulation and dosage prescribed.
If you're prescribed methimazole, complete the entire course of the antithyroid agent unless your doctor specifically tells you to stop. If you don’t complete your prescription, the thyroid medication may not fully treat your hyperthyroidism.
Methimazole uses
There are a couple FDA-approved uses for methimazole but some specialists may prescribe it off label for other reasons
Your PlushCare doctor may prescribe methimazole for any of the following reasons. If you have questions about why a medication is prescribed, ask your online doctor or pharmacist.
Hyperthyroidism
Methimazole may also be prescribed to reduce the symptoms of hyperthyroidism to prepare for thyroid surgery (thyroidectomy) or radioactive iodine therapy.
Methimazole side effects
The side effects associated with taking methimazole are typically mild. Most Methimazole side effects are associated with gastrointestinal discomfort. Methimazole has some common side effects. Possible side effects may include:
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Nausea, vomiting, and upset stomach
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Headache, dizziness, and drowsiness
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Rash, itching, or skin discoloration
Other side effects, which are less common but might be more severe, could include:
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Sudden weakness and cold symptoms, such as sore throat
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Swollen glands in your neck or jaw
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Signs of liver problems, such as unusual tiredness and dark urine
Tell your doctor if you notice any of these side effects. Ask your doctor for medical advice about side effects if you develop any other new or concerning symptoms.
Methimazole may be prescribed in younger children with mild hyperthyroidism who present symptoms of Graves' disease.
How to take methimazole
Methimazole can come in different forms and doses, so be sure to follow the specific instructions on your prescription. The starting dose for adults can range from 15 mg to 60 mg daily, given in three doses. The maintenance dose ranges from 5 mg to 10 mg daily.
Take your medication as directed by your physician to properly control your thyroid levels. Because storage temperature ranges differ according to manufacturers, ask your pharmacist for storage instructions.
What to avoid while taking methimazole
Methimazole has many drug interactions. Don’t change what you take without checking with your doctor or pharmacist. That includes other drugs, dietary supplements, and nonprescription drugs.
Possible drug interactions with methimazole include:
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Blood thinners, such as warfarin
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Digoxin, digitalis, and theophylline
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Beta-blockers, such as atenolol, carvedilol, and propranolol
Avoid drinking alcohol while taking methimazole, as alcohol consumption may increase the risk of liver problems and severe side effects. Avoid spending time around people who are sick or have infections.
Medication alternatives to methimazole
If your healthcare provider prefers to put you on another treatment, they may suggest another antithyroid agent in another drug class. Here are some common doctor-recommended alternatives based on your health issue:
Hyperthyroidism
Methimazole prescription FAQs
How much does methimazole cost?
How can I refill my methimazole prescription?
Who should not take methimazole?
Tell your doctor if you have certain medical conditions, such as:
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Liver disease
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Blood cell disorders, such as decreased white blood cells (leukopenia) or aplastic anemia
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Weakened immune system
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Decreased white blood cells
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Allergic reactions
Methimazole should not be taken during pregnancy or while breastfeeding. If you become pregnant while taking methimazole, tell your doctor immediately.
What happens if you touch methimazole?
What happens if you take methimazole and don't need it?
Taking methimazole when you don't need it can cause serious side effects, such as:
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Irregular heart rhythms
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Symptoms of heart failure
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Rapid heart rate
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Loss of bone density
If your doctor advises you to stop taking methimazole, contact your local waste disposal company or provincial poison control center (for Canadian residents) to properly dispose of your medication.
How long does it take to feel better on methimazole?
What happens if I miss a dose of methimazole?
What happens if I take too much methimazole?
3 simple steps to request your methimazole prescription today
Book a methimazole prescription request appointment.
Talk to your medical provider regarding your methimazole prescription.
Pick up your methimazole prescription.
Methimazole prescription pricing details
To get a new or refill on your methimazole prescription, join our monthly membership and get discounted visits.
30 days of free membership
- Same-day appointments 7 days a week
- Unlimited messages with your Care Team
- Prescription discount card to save up to 80%
- Exclusive discounts on lab tests
- Free memberships for your family
- Cancel anytime
Paying with insurance
Membership
$19.99
First month free
Visits
Copay
Visit price with insurance
Often the same as an office visit. Most patients with in-network insurance pay $30 or less!
We accept these insurance plans and many more:
Paying without insurance
Membership
$19.99
First month free
Visits
$129
Visit price without insurance
Methimazole prescription resources
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PlushCare content is reviewed by MDs, PhDs, NPs, nutritionists, and other healthcare professionals. Learn more about our editorial standards and meet the medical team. The PlushCare site or any linked materials are not intended and should not be construed as medical advice, nor is the information a substitute for professional medical expertise or treatment.