Bugleweed inhibits the binding of antibodies to the thyroid gland. These antibodies can cause the most common form of hyperthyroidism, Graves’ disease. All these actions may help explain bugleweed’s benefit in people with mildly overactive thyroids.
Motherwort is used for heart conditions, including heart failure, irregular heartbeat, fast heartbeat, and heart symptoms due to anxiety. It is also used for the absence of menstrual periods, intestinal gas (flatulence), and over-active thyroid (hyperthyroidism).