Levothyroxine attenuates behavioral impairment and improves oxidative stress and histological alteration 3 nitropropionic acid induced experimental Huntington's disease in rats ScienceDirect Glutathione system enhancement for cardiac protection: pharmacological options against oxidative stress and ferroptosis Cell Death & Disease Multiple nutritional factors and thyroid disease, with particular reference to autoimmune thyroid disease Proceedings of the Nutrition Society Cambridge Core Levothyroxine (Synthroid, Tirosint, Levoxyl) is a medication for treating hypothyroidism (underactive thyroid), a condition that is more common in people with Down syndrome. Health care providers usually recommend taking levothyroxine with water