Drugs >  Propylthiouracil
Propylthiouracil
Pronunciation
Foreign Brand Names
Therapeutic Categories
Reasons not to take this medicine
What is this medicine used for?
How does it work?
How is it best taken?
What do I do if I miss a dose?
What are the precautions when taking this medicine?
What are the common side effects of this medicine?
What should I monitor?
Reasons to call healthcare provider immediately
How should I store this medicine?
General statements

Pronunciation
(proe pil thye oh YOOR a sil)

Foreign Brand Names
Propyl-Thyracil® (Canada)

Therapeutic Categories
Antithyroid Agent

Reasons not to take this medicine

  • If you have an allergy to propylthiouracil or any other part of the medicine.


What is this medicine used for?

  • Early treatment of the over active thyroid gland and thyrotoxic crisis.


How does it work?

  • Prevents further production of thyroid hormones.


How is it best taken?

  • Take the tablet with food.
  • Take a regular intervals around-the-clock.


What do I do if I miss a dose?

  • Take a missed dose as soon as possible.
  • If it is almost time for the next dose, skip the missed one. Return to your regular schedule.
  • Do not take a double dose or extra doses.


What are the precautions when taking this medicine?

  • If you are taking warfarin talk with healthcare provider.
  • Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, throat; or any other symptoms involved.
  • Do not use in pregnancy and do not get pregnant. Use birth control that you can trust during and for 1 month after therapy.


What are the common side effects of this medicine?

  • Side effects are rare.
  • Nausea and vomiting. Small frequent meals, frequent mouth care, sucking hard candy, or chewing gum may help.


What should I monitor?

  • Ask healthcare provider about checking baby's thyroid function if you are using this medicine and breast-feeding.
  • Check blood work. Talk with healthcare provider.
  • If you are taking warfarin check INR every week until stable.
  • Follow up with healthcare provider.


Reasons to call healthcare provider immediately

  • Signs of a life-threatening reaction. These include wheezing; tightness in the chest; fever; itching; bad cough; blue skin color; fits; swelling of face, lips, tongue, or throat.
  • Fever or sore throat.
  • Unusual bleeding or bruising.
  • Nausea/vomiting, belly pain, feeling tired, dark urine, yellow eyes or skin, not hungry.
  • Any rash.


How should I store this medicine?

  • Store in a tight container at room temperature.


General statements

  • Do not share your medicine with others and do not take anyone else's medicine.
  • Keep all medicine out of the reach of children and pets.
  • Keep a list of all your medicines (prescription, herbal/supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, pharmacist, physician assistant).
  • Talk with healthcare provider before starting any new medicine, including over-the-counter or natural products (herbs, vitamins).


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