Thyroid Preparations/Estrogens Interactions
This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.
Moderate. These medicines may cause some risk when taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.
How the interaction occurs:
Taking thyroid medicines with estrogens may decrease the amount of thyroid hormone in your body.
What might happen:
Your thyroid medicine may not work as well when taking it with estrogens. Some signs and symptoms to watch for would be: fatigue, depression, dry hair, dry skin, brittle nails, weight gain and constipation.
What you should do about this interaction:
Let your healthcare professionals (e.g. doctor or pharmacist) know that you are taking these medicines together.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.
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