Synthroid is the brand name medication of levothyroxine (generic). It is the drug of choice for hypothyroidism and dosing is individualized based on age, body weight, cardiovascular status, and concomitant conditions.

In 2013, AbbVie became a separate company from Abbott Laboratories--a major American medical devices and health care company. Today AbbVie distributes 32 drugs in the U.S. and serves 75 countries through its range of product offerings. AbbVie has 14 manufacturing sites, including in the U.S., Asia, and Europe.