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)
Overactive thyroid is more common in women, but anyone can develop the condition. Graves' disease is the most common cause of hyperthyroidism. It's an autoimmune disorder in which an antibody causes the thyroid gland to make too much thyroid hormone. Experts aren't sure what causes Graves' disease. The condition is more common in women and runs in families.