Can the wrong doseage of thyroxine for hypothyroidism lead to hyperthyroidism?

Hyperthyroidism. Too much of thyroid hormone medication may cause symptoms of hyperthyrodism; but it is unlikely to cause the thyroid gland itself to become hyperactive.

Related Questions

Is thyroxine for hypothyroidism? I have hypothyroidism, sister has Hyperthyroidism, I'm confused we've been medicated with same dose...

Yes. thyroxine is for hypothyroidism. Your sister could have hyperthyroidism that was treated, now has hypothyroidism and could be on thyroxine after that. Need to know more about what your sister did with the hyperthyroidism. Read more...