Treatment by Condition Related to phentermine. Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, expect as may be authorized by the applicable terms of use. CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals.
Many diseases and conditions can cause hyperthyroidism, including: 1  Graves disease (most common cause of hyperthyroidism)  Inflammation (thyroiditis) of the thyroid due to viral infections, some medicines, or after pregnancy (common)
See more hyperthyroidism symptoms. Causes of Hyperthyroidism. The thyroid gland makes the hormones thyroxine (T 4) and triiodothyronine (T 3) that play an important role in the way your whole body functions.If your thyroid gland makes too much T 4 and T 3, this is defined as hyperthyroidism.ee more hyperthyroidism symptoms. Causes of Hyperthyroidism. The thyroid gland makes the hormones thyroxine (T 4) and triiodothyronine (T 3) that play an important role in the way your whole body functions.