The originating document has been archived. We cannot confirm the completeness, accuracy and currency of the content. Levothyroxine is a replacement for a hormone normally produced by your thyroid gland levothroid vs levothyroxine regulate the body’s energy and metabolism. Levothyroxine is given when the thyroid does not produce enough of this hormone on its own.
Levothyroxine may also be used for purposes not listed in this medication guide. You may not be able to take this medication if you have certain medical conditions. Tell your doctor if you have an untreated or uncontrolled adrenal gland disorder, a thyroid disorder called thyrotoxicosis, or if you have any recent or current symptoms of a heart attack. Levothyroxine should not be used to treat obesity or weight problems. Dangerous side effects or death can occur from the misuse of levothyroxine, especially if you are taking any other weight-loss medications or appetite suppressants. Since thyroid hormone occurs naturally in the body, almost anyone can take levothyroxine. However, you may not be able to take this medication if you have certain medical conditions.
Levothyroxine is not expected to harm an unborn baby. If you become pregnant while taking levothyroxine, do not stop taking the medicine without your doctor’s advice. Having low thyroid hormone levels during pregnancy could harm both mother and baby. Your dose needs may be different during pregnancy. Levothyroxine can pass into breast milk, but it is not expected to be harmful to a nursing baby.
Do not use this medication without telling your doctor if you are breast-feeding a baby. Your dose needs may be different while you are nursing. Follow all directions on your prescription label. Your doctor may occasionally change your dose to make sure you get the best results. Do not take this medicine in larger or smaller amounts or for longer than recommended. Do not share this medication with another person, even if they have the same symptoms you have.
Levothyroxine works best if you take it on an empty stomach, at least 30 minutes before breakfast. Follow your doctor’s dosing instructions and try to take the medicine at the same time each day. The Levoxyl tablet can dissolve very quickly and swell in the throat, possibly causing choking or gagging. While using levothyroxine, you may need frequent medical tests. Tell any doctor or dentist who treats you that you are using levothyroxine.
Store at room temperature away from moisture and heat. It may take several weeks before your body starts to respond to levothyroxine. Keep using this medicine even if you feel well. You may need to use levothyroxine for the rest of your life to replace the thyroid hormone your body cannot produce.
What happens if I miss a dose? Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose. Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. Overdose symptoms may include headache, leg cramps, tremors, feeling nervous or irritable, chest pain, shortness of breath, and fast or pounding heartbeats.