Were you looking for information about Synthroid? Zynthroid is a common misspelling of Synthroid.
Synthroid® is a prescription drug that has been approved to treat an underactive thyroid (hypothyroidism) and a variety of thyroid problems. As with any drug, side effects are possible with Synthroid, such as a rapid heart rate, hair loss, and insomnia. The dose that your healthcare provider recommends will vary, depending on several factors, such as your age, other medical conditions you have, and the results of certain blood tests.
(For more information, click Synthroid. This eMedTV article offers more detailed information on this medication, including dosing guidelines and potential overdose symptoms.)