According to Drugs.com, Synthroid is a prescription medication that is commonly used to treat patients that have hypothyroidism. It may also be used to help prevent or treat a swollen thyroid gland, also known as a goiter.
Drugs.com explains that Synthroid, generically known as Levothyroxine, is prescribed when a person suffers from an underactive thyroid gland. The drug replaces the naturally produced hormones the body needs, but does not produce at the levels needed for proper energy and metabolism function, states MedlinePlus.
Synthroid needs to be taken on a daily basis on an empty stomach; the physician will decide on the dosage based on the severity of the thyroid issue. Water can be used to assist swallowing the pill if absolutely necessary; patients should speak with a pharmacist if they have difficulty swallowing the pill.
The RX List gives details about how Synthroid works to compress goiters and thyroid nodules and how it is also used to assist in the treatment of some thyroid cancers. Drugs.com warns that people who have suffered a recent heart attack or those that have thyrotoxicosis should not take this medication. The RX list informs it may take 4 to 6 weeks with consistent use for the medication to become effective for some patients.