Liothyronine
Generic name: Liothyronine
Dosage form: oral tablet (25 mcg; 5 mcg; 50 mcg)
Drug class:
Thyroid drugs
Usage of Liothyronine
Liothyronine is a man-made form of a hormone that is normally produced by your thyroid gland to regulate the body's energy and metabolism. Liothyronine is given when the thyroid does not produce enough of this hormone on its own.
Liothyronine treats hypothyroidism (low thyroid hormone). Liothyronine is also given as part of a medical test for thyroid disorders.
Liothyronine is also used together with surgery and radioactive iodine therapy in people with thyroid cancer.
Liothyronine should not be used to treat obesity or weight problems.
Liothyronine may also be used for purposes not listed in this medication guide.
Liothyronine side effects
Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Stop using liothyronine and call your doctor if you have symptoms of thyroid toxicity, such as chest pain, fast or pounding heartbeats, feeling hot or nervous, or sweating more than usual.
Also call your doctor at once if you have:
Common side effects of liothyronine may include:
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Before taking Liothyronine
Since thyroid hormone occurs naturally in the body, almost anyone can take liothyronine. However, you may not be able to use this medicine if you have an adrenal gland problem that is not controlled by treatment.
Tell your doctor if you have ever had:
Tell your doctor if you are pregnant or breastfeeding.
Follow your doctor's instructions about using this medicine if you are pregnant. Controlling your thyroid hormone levels is very important during pregnancy, and your dose needs may be different during each trimester.
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- Thyroid
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How to use Liothyronine
Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.
Older adults may be more sensitive to the effects of liothyronine, and doses are generally lower for people in this age group.
If you are switching to liothyronine from any other thyroid medicine, stop using the other medicine before you start taking liothyronine.
Liothyronine doses are based on weight (especially in children and teenagers). Your dose needs may change if you gain or lose weight.
When given as part of a thyroid suppression test, you will need to take liothyronine for several days in a row in preparation for the test. Tell your doctor if you miss any doses during this time.
Your thyroid function will need to be tested often. Even if you have no symptoms, tests can help your doctor determine if this medicine is effective.
If you need surgery, tell your surgeon you currently use this medicine. You may need to stop for a short time.
This medicine can affect the results of certain medical tests. Tell any doctor who treats you that you are using liothyronine.
Keep using this medicine as directed, even if you feel well. You may need to take thyroid medication for the rest of your life.
Store at room temperature away from moisture and heat.
Warnings
Liothyronine should not be used to treat obesity or weight problems.
You may not be able to use liothyronine if you have an adrenal gland problem that is not controlled by treatment.
Stop taking liothyronine and call your doctor if you have symptoms of thyroid toxicity, such as chest pain, fast or pounding heartbeats, feeling hot or nervous, or sweating more than usual.
What other drugs will affect Liothyronine
Some medicines can make liothyronine much less effective when taken at the same time. If you take any of the following medicines, take your liothyronine dose 4 hours before you take the other medicine.
Tell your doctor about all your current medicines. Many drugs can affect liothyronine, especially:
This list is not complete and many other drugs may affect liothyronine. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.
Disclaimer
Every effort has been made to ensure that the information provided by Drugslib.com is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Drugslib.com information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Drugslib.com does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Drugslib.com's drug information does not endorse drugs, diagnose patients or recommend therapy. Drugslib.com's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners.
The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Drugslib.com does not assume any responsibility for any aspect of healthcare administered with the aid of information Drugslib.com provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.
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