Define pharmaceutical: of, relating to, or engaged in pharmacy or the manufacture and sale of pharmaceuticals â pharmaceutical in a sentence of, relating to, or engaged in pharmacy or the manufacture and sale of pharmaceuticalsâ¦ See the full definition
Hypothyroidism (underactive thyroid) Overview. Hypothyroidism (underactive thyroid) is a condition in which your thyroid gland doesn't produce enough of certain important hormones. Women, especially those older than age 60, are more likely to have hypothyroidism. Hypothyroidism upsets the normal balance of chemical reactions in your body.
Hypothyroidism means your thyroid is not making enough thyroid hormone. The thyroid is a butterfly-shaped gland in the front of your neck. It makes hormones that control the way your body uses energy. Having a low level of thyroid hormone affects your whole body. It can make you feel tired and weak.