What is Thyrogen used for

Thyrogen is used as an additional diagnostic tool for detecting blood levels of thyroglobulin with or without radioiodine imaging in the follow-up of patients with certain types of thyroid cancer.

Testing with Thyrogen may be used in the following situations:

  1. In patients with an undetectable thyroglobulin on thyroid hormone suppressive therapy, to exclude the diagnosis of residual or recurrent thyroid cancer.
  2. In patients requiring blood thyroglobulin testing and radioiodine imaging who are unwilling to undergo thyroid hormone withdrawal testing and whose doctor believes that using a less sensitive test is appropriate.
  3. In patients who either do not have a sufficient thyroid stimulating hormone (TSH) blood level in response to thyroid hormone withdrawal or in whom withdrawal is not advised.

General Precautions to take when on Thyrogen:

  • Even when Thyrogen-stimulated thyroglobulin testing is done with radioiodine imaging, there is a meaningful risk of missing the existence of thyroid cancer or of underestimating the disease. Thyroid hormone withdrawal testing with radioiodine imaging remains the standard diagnostic test to assess the presence, location and extent of thyroid cancer.
  • Tell your doctor if you have been treated with bovine TSH in the past and if you experienced an allergic reaction to bovine TSH.
  • Thyrogen can cause a temporary but significant increase in the level of thyroid hormone in your blood. Therefore, your doctor will monitor you more closely if you have a history of heart problems and if you have thyroid tissue remaining in your body.

There are some things that you should tell your doctor when taking this medication:

Tell your doctor if you are pregnant, trying to get pregnant, or if you are currently breast feeding.

What side effects can you expect when taking Thyrogen? (This is only a partial list of side effects reported with Thyrogen. Ask your doctor or pharmacist for a complete list of possible side effects and drug interactions..)

  • Nausea
  • Headache
  • Weakness

For more detailed information about Thyrogen, ask your doctor.

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