what are the side effects of hypothyroid medication
Side Effects of Synthroid. Side effects can occur with Synthroid. Side effects of Synthroid are often a result of your body getting too much medicine. If you experience any of the side effects* below, itâs important to discuss them with your doctor. Rapid or irregular heartbeat. Chest pain or shortness of breath. Muscle weakness.
Common side effects of Synthroid include: 1  fever, 2  hot flashes, 3  sensitivity to heat, 4  sweating, headache, 5  nervousness, irritability, 6  nausea, sleep problems (insomnia),  changes in appetite or changes 1  in weight, changes in menstrual 2  perdiods, and temporary  hair loss.