Some things you should know if you take levothyroxine! Levothyroxine is a replacement hormone medication used to treat low levels of thyroid hormone, that could be caused by a pituitary condition. Levothyroxine 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 Levothyroxine Wikipedia This one antioxidant is ULTRA important for your thyroid function , Glutathione is our bodys master antioxidant meaning its the most important and abundant one. As it relates to the thyroid,