What is
hypothyroidism?
Hypothyroidism is the disease state in
humans and animals caused by
insufficient production of thyroid
hormone by the thyroid gland.
Thyroxine
It affects about 5%
of the United Kingdom population over
60 years of age. As of 2006, more than
1% of the United Kingdom population
were receiving T4 (Thyroxine)
replacement therapy for hypothyroidism.