Drugs Home > PTU

What Should I Tell My Healthcare Provider?

Prior to taking PTU, talk to your healthcare provider if you have:
 
  • Liver disease, such as hepatitis, cirrhosis, or liver failure
  • A bleeding disorder
  • Any allergies, including to food, dyes, or preservatives.
     
Also, let your healthcare provider know if you are:
 
Make sure to tell your healthcare provider about all of the medicines you take, including prescription and nonprescription medications, vitamins, and herbal supplements.
 
(Click Precautions and Warnings With PTU to learn more, including information on who should not take the drug.)
 

How Does It Work?

PTU works by inhibiting the production of thyroid hormones in the thyroid. This medicine prevents the oxidation of iodine, an important step in the production of thyroid hormones. It also blocks the conversion of the less active form of thyroid hormone to the more active form.
 

When and How to Take PTU

Some general considerations to keep in mind when taking this medication include the following:
 
  • PTU comes in tablet form. It is usually taken three times daily.
     
  • You can take PTU with or without food.
     
  • For the medicine to work properly, it must be taken as prescribed.
     
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
List of references (click here):
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