Hyperthyroid Medication Discontinued

The Thyroid Foundation of Canada has recently learned an important medication for hyperthyroidism, Propylthiouracil (PTU) has been discontinued by Paladin Labs, the only Canadian manufacturer of PTU.  The Canadian Society of Endocrinology and Metabolism (CSEM) has written a letter of concern to Health Canada (CSEM Letter to Health Canada). In 2018, there were about 36,000 prescriptions for PTU.  Patients who are concerned about this should consult with their doctor re other possible treatment options as well inform their MP regarding the discontinuance.  There is an alternative drug, Methimazole (Tapazole), however some patients may be allergic to it and it is not recommended for pregnant women.

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