Were you looking for information about Synthroid? Sinthroid is a common misspelling of Synthroid.
Synthroid® is a prescription drug that is identical to the naturally occurring hormone in the body known as levothyroxine (T4). It helps to treat an underactive thyroid by increasing the level of thyroid hormones in the body. The medication comes in tablet form and is typically taken once a day in the morning. Possible side effects with Synthroid include a rapid heart rate, hair loss, and insomnia.
(For more information, click Synthroid. This article offers an overview of the drug's effects, dosing guidelines, and possible side effects.)