Will I Lose Weight on Synthroid?

When on Synthroid if you do experience appetite changes, weight changes, headache, insomnia, nervous or irritable feelings, fever, hot flashes, unusual sweating, or changes in your menstrual cycle you should contact your doctor at once! As these are serious side effects of the medication. Your doctor can help you decide if this medication’s good effects outweigh the side effects for your specific condition. Your weight loss should be no different on Synthroid than for a person not taking the medication.