Mylan Pharmaceuticals and Levothyroxine
Mylan Pharmaceuticals manufactures levothyroxine, a synthetic thyroid hormone used to treat hypothyroidism. Hypothyroidism is a condition where the thyroid gland does not produce enough thyroid hormones [1].
What is Levothyroxine Used For?
Levothyroxine is prescribed to replace or supplement the thyroid hormone thyroxine that is lacking in individuals with hypothyroidism [1]. It is also used to treat or suppress thyroid cancer and to manage goiters, which are enlarged thyroid glands [1].
How Does Levothyroxine Work?
Levothyroxine is a man-made form of thyroxine (T4), a hormone naturally produced by the thyroid gland. It works by binding to thyroid hormone receptors in various tissues of the body, mimicking the effects of endogenous thyroid hormone. This replacement helps to restore normal metabolic processes [1].
What Are the Side Effects of Levothyroxine?
Potential side effects of levothyroxine can mirror symptoms of hyperthyroidism (overactive thyroid). These may include increased heart rate, chest pain, diarrhea, vomiting, fever, headache, leg cramps, nervousness, restlessness, sleeplessness, tremors, and unexplained weight loss [1].
How Does Mylan's Levothyroxine Compare to Other Brands?
Levothyroxine is available in multiple formulations and under various brand names. Mylan's product is one of several generic options available. The efficacy and safety profiles of generic levothyroxine products are generally considered comparable to the reference listed drug when they meet bioequivalence standards [2].
When Does Mylan's Levothyroxine Patent Expire?
Levothyroxine itself is a well-established drug, and the patents for the original formulations have long expired. Mylan, as a generics manufacturer, produces levothyroxine after the innovator's patent protection has ended [3]. Information on specific patent expirations for any particular Mylan formulation can be found on specialized patent tracking websites [3].
Where Can I Buy Mylan's Levothyroxine?
Mylan's levothyroxine is available by prescription through most retail pharmacies. Patients should consult their healthcare provider for a prescription and discuss their medication options with their pharmacist [1].