Generic Name: Methimazole

  • What is Tapazole?

    Tapazole is a medicine used to treat hyperthyroidism (an overactive thyroid gland). Tapazole is used to decrease symptoms of hyperthyroidism in preparation for surgery to remove your thyroid gland or radioactive iodine therapy, or when thyroid surgery is not a treatment option.

  • What is the most important information I should know about Tapazole?

    Tapazole can cause agranulocytosis (blood disorder in which white blood cells are not made in adequate numbers or are not made at all). Stop taking this medication and tell your doctor immediately if you experience a fever or sore throat.

    Tapazole can cause severe liver problems. Tell your doctor immediately if you experience a loss of appetite, itchiness, and pain or tenderness in your right upper stomach area. Your doctor will monitor your liver function.

    Your doctor will monitor your blood thyroid hormone levels regularly.

  • Who should not take Tapazole?

    Do not take Tapazole if you are allergic to it or any of its ingredients.

    Do not take Tapazole if you are breastfeeding.

  • What should I tell my doctor before I take the first dose of Tapazole?

    Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Tapazole. Also, talk to your doctor about your complete medical history, especially if you have liver or blood problems, or are pregnant or breastfeeding.

  • What is the usual dosage?

    The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.

    Adults: Your doctor will prescribe the appropriate dose for you, based on the severity of your condition.

    Children: Your doctor will prescribe the appropriate dose for your child, based on their weight.

  • How should I take Tapazole?

    Take Tapazole exactly as prescribed by your doctor.

  • What should I avoid while taking Tapazole?

    Do not take more Tapazole than prescribed by your doctor. If you take too much of this medication, you can experience nausea, vomiting, pain or tenderness in your upper stomach area, headache, fever, joint pain, itchiness, or swelling.

  • What are possible food and drug interactions associated with Tapazole?

    If Tapazole is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Tapazole with the following: blood pressure/heart medications known as beta-blockers (such as metoprolol or propranolol), blood thinners (such as warfarin), digoxin, or theophylline.

  • What are the possible side effects of Tapazole?

    Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.

    Side effects may include: drowsiness, fever, headache, itchiness, joint pain, liver inflammation, loss of hair, loss of taste, muscle pain, nausea, pain or tenderness in your upper stomach area, skin rash, sore throat, swelling, tingling, tiredness, vomiting, yellowing of your skin or whites of your eyes

  • Can I receive Tapazole if I am pregnant or breastfeeding?

    Tapazole can cause harm to your unborn or newborn baby if you use it during pregnancy or breastfeeding. Tapazole can be found in your breast milk and should not be used during breastfeeding. Tell your doctor immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What should I do if I miss a dose of Tapazole?

    If you miss a dose of Tapazole, take it as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.

  • How should I store Tapazole?

    Store at room temperature.