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Generic name: methimazole [me-THIM-a-zole]
The class of drug: antithyroid agents

What is Tapazole?

Tapazole helps stop the thyroid gland from producing excessive thyroid hormone. Tapazole is a medication used to treat the condition of hyperthyroidism (overactive thyroid). It is also prescribed prior to thyroid surgical procedures and radioactive iodine treatment. Tapazole is also employed for other purposes that are not covered in this guideline.

Side effects of Tapazole

Contact a medical professional immediately. If you are experiencing symptoms that indicate an allergic reaction, such as symptoms of hives, difficulty breathing, and swelling of your lips, face, or tongue,

Sometimes fatal infections could occur while using Tapazole. Stop taking Tapazole and consult your physician right away if you are showing symptoms of infection, such as:

  • A sudden feeling of weakness or discomfort, fever, chills, sore throat, cold or flu symptoms;
  • Sores in the mouth that hurt, pain when swallowing, swollen or red gums,
  • Pale skin, no bruising, or unusual bleeding.

Tapazole may cause serious side effects. Contact your physician immediately in the event of:

  • The glands of your neck are swelling, or your jaw;
  • liver issues: nausea and stomach pains in the upper part of the stomach, itching, fatigue, lack of appetite, dark stools, clay-coloured urine, and jaundice (yellowing of the eyes or skin).

Common adverse effects of tapazole can include:

  • Nausea, vomiting, upset stomach;
  • Headache, dizziness, or drowsiness;
  • Tingling sensation or numbness
  • Rash, itching, and skin discoloration;
  • Muscles or joint discomfort;
  • Hair loss, or
  • Diminished perception of flavour

This isn't a complete list of possible side effects, and other side effects could occur. Consult your physician to seek medical advice on the effects. You can report symptoms to the FDA at 1-800-FDA-1088.

Similar or related drugs

Methimazole, propylthiouracil, reserpine, iodine, and potassium iodide


It is not recommended to breastfeed when taking this medicine.

Before taking this medication

Tapazole is not a good choice if you have an allergy to it or if:

  • If you are expecting or breastfeeding.

To ensure that Tapazole is not harmful to you, inform your doctor whether you suffer from:

  • The liver condition;
  • A blood cell disorder; or
  • A weak immune system.

The use of tapazole during pregnancy may cause harm to the baby. Inform your doctor if you're pregnant or become pregnant while taking Tapazole. Methimazole is a drug that can be passed in breast milk and could harm a nursing child. Do not breastfeed when taking this medication. Don't give the medication to an infant without obtaining medical guidance.

How to take Tapazole?

Follow all the instructions on the prescription label. Your doctor might alter your dosage. Avoid using this medication in smaller or larger quantities or for longer periods than the recommended time. Tapazole is generally consumed at intervals of 8 to 10 hours. You should take your doses on a regular basis to ensure a constant quantity of the drug in your body throughout the day. If your child is taking this medication, tell your doctor in the event that your child experiences changes in his weight. Tapazole doses are determined by the weight of children, and any changes could affect your child's dosage. Tapazole can reduce blood cells, which help your body fight off infections and aid in helping your blood form clots. This could make it easier to lose blood due to an injury or get sick from being around other people who are sick. Your blood could require frequent testing. Make sure to take Tapazole often to get the maximum benefit, even if your body is well or you don't have any signs of hyperthyroidism. Make sure you refill your prescription before you run out of medication completely. If you are undergoing surgery, inform the surgeon in advance that you're taking Tapazole. Keep at room temperature, away from heat and moisture.

What happens If I miss a dose?

You should take the missed dose as quickly as you can remember. Do not take any missed doses if it's nearing the time for the next dose. Don't take any extra medication to make up for the missed dose.

What happens if I overdose?

For medical emergencies, seek emergency medical attention or contact the Poison Help line at 1-800-222-1222.

Overdose symptoms can include vomiting, nausea, stomach upset, headaches, joint discomfort, fever, itching, the appearance of pale skin, and bleeding or bruising that is easy to stop.

What should be avoided?

Beware of those with illnesses or who are suffering from infections. Contact your doctor right away in the event that you show symptoms of an injection.

Interaction with other drugs

Inform your doctor about all your medications currently in use and any new medications you begin or stop taking, in particular:

  • Digoxin, digitalis, theophylline;
  • A blood thinner -- warfarin, Coumadin, or Jantoven; or
  • Beta blockers: carvedilol, labetalol, metoprolol, propranolol, nadolol, and many more





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