Hypothyroidism (underactive thyroid) is a condition in which your thyroid gland doesn't produce enough of certain important hormones.
Fatigue, Weakness, Weight gain or increased difficulty losing weight, Coarse, dry hair, rough pale skin, Hair loss, Cold intolerance (you can't tolerate cold temperatures like those around you), Muscle cramps and frequent muscle aches.
Iron supplements, Cholestyramine, Aluminum hydroxide, which is found in some antacids, Calcium supplements
The following statistics attempts to extrapolate the above prevalence rate for Thyroid disorders to the populations of various countries and regions. Extrapolated Prevalence of Thyroid disorders in Japan 9,362,720 and Extrapolated Statistics was found to be 127,333,002.These prevalence extrapolations for Thyroid disorders are only estimates, based on applying the prevalence rates.