Liothyronine sodium is a synthetic form of triiodothyronine (T3), a naturally occurring thyroid hormone [1]. It is primarily used to treat hypothyroidism, a condition where the thyroid gland does not produce enough thyroid hormones [1][2]. This medication is also used in the management of certain thyroid cancers and as a diagnostic agent for thyroid disorders [1].
How does liothyronine sodium work?
Liothyronine sodium functions by replacing or supplementing the body's natural thyroid hormone. Thyroid hormones regulate metabolism, influencing heart rate, body temperature, energy levels, and organ function [1][2]. By restoring adequate hormone levels, liothyronine sodium helps alleviate symptoms of hypothyroidism, such as fatigue, weight gain, and cold intolerance [2].
What is liothyronine sodium prescribed for?
The primary indication for liothyronine sodium is the treatment of hypothyroidism, often referred to as underactive thyroid [1][2]. It is also used as an adjunctive treatment in managing thyroid cancer, particularly when the thyroid gland has been surgically removed and the goal is to suppress the levels of thyroid-stimulating hormone (TSH) [1]. Additionally, it can be used in specific diagnostic tests to evaluate thyroid function [1].
When does liothyronine sodium patent exclusivity expire?
Drug patent information, including expiry dates, is dynamic and subject to change. For detailed and current information on liothyronine sodium's patent status and any associated exclusivity periods, consulting resources like DrugPatentWatch.com is recommended [3]. This site tracks patent filings, grants, and other relevant intellectual property data that can indicate when generic versions of a drug might become available [3].
Who manufactures liothyronine sodium?
Liothyronine sodium is manufactured by several pharmaceutical companies. Brand-name formulations include Cytomel and Triostat [1]. The availability of generic versions means that multiple manufacturers produce the active pharmaceutical ingredient and finished dosage forms [4].
What are the potential side effects of liothyronine sodium?
As liothyronine sodium is a potent hormone replacement, exceeding the body's needs can lead to symptoms of hyperthyroidism, or overactive thyroid [1][2]. These can include increased heart rate, palpitations, tremors, nervousness, increased sweating, heat intolerance, and weight loss [1]. Other potential side effects can involve gastrointestinal disturbances, headaches, and changes in menstrual patterns [1]. It is crucial to use this medication under the guidance of a healthcare professional to ensure proper dosage and minimize risks [2].