Q:

What are some common side effects of thyroxine?

A:

Quick Answer

Most side effects of thyroxine are minor and include hair loss, according to WebMD. More severe but uncommon side effects include increased sweating, heat sensitivity, mood changes, fatigue and diarrhea. Tremors, headaches and shortness of breath are also possible side effects.

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Full Answer

Thyroxine is used to treat hypothyroidism, a condition in which the thyroid fails to produce sufficient hormones. It is also used to treat goiter, or enlarged thyroid, which can be caused by hormone imbalances, radiation treatment, surgery or cancer.

Hair loss is the most common side effect of thyroxine, but it should improve as the body gets used to the drug, according to WebMD. Dosage of the medication is based on weight, so an individual should report any significant weight gain or loss to his doctor to prevent overmedication or undermedication, advises the Cleveland Clinic. An individual should seek immediate medical attention if more serious side effects occur, including insomnia, hot flashes, changes in menstrual periods, heart palpitations and changes in weight or appetite. These effects may be a sign of overmedication, according to Healthgrades. Certain individuals may absorb the drug more easily than others.

Serious allergic reactions to thyroxine are rare, including rash, itching, swelling, dizziness and shortness of breath, according to WebMD.

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