Generic Name: Liothyronine Tablets (lye oh THYE roh neen)
Brand Name: Cytomel
Medically reviewed on Feb 17, 2019
- Do not use Cytomel (liothyronine tablets) to treat obesity or for weight loss. Very bad and sometimes deadly side effects may happen with Cytomel (liothyronine tablets) if it is taken in large doses or with other drugs for weight loss. Talk with the doctor.
Uses of Cytomel:
- It is used to add thyroid hormone to the body.
- It is used to manage thyroid cancer.
- It is used to test for thyroid problems.
- It may be given to you for other reasons. Talk with the doctor.
What do I need to tell my doctor BEFORE I take Cytomel?
- If you have an allergy to liothyronine or any other part of Cytomel (liothyronine tablets).
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you have any of these health problems: Overactive thyroid gland or weak adrenal gland.
This is not a list of all drugs or health problems that interact with Cytomel (liothyronine tablets).
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Cytomel (liothyronine tablets) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Cytomel?
- Tell all of your health care providers that you take Cytomel (liothyronine tablets). This includes your doctors, nurses, pharmacists, and dentists.
- Do not run out of Cytomel (liothyronine tablets).
- It may take several weeks to see the full effects.
- If you have high blood sugar (diabetes), Cytomel (liothyronine tablets) may sometimes raise blood sugar. Talk with your doctor about how to keep your blood sugar under control.
- Check your blood sugar as you have been told by your doctor.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- This medicine may cause weak bones (osteoporosis) with doses that are too high. The risk may be higher in women who have been through menopause. Talk with your doctor to see if you have a higher risk of weak bones or if you have any questions.
- This medicine may affect how much of some other drugs are in your body. If you are taking other drugs, talk with your doctor. You may need to have your blood work checked more closely while taking Cytomel (liothyronine tablets) with your other drugs.
- If you are 65 or older, use Cytomel (liothyronine tablets) with care. You could have more side effects.
- This medicine may affect growth in children and teens in some cases. They may need regular growth checks. Talk with the doctor.
- This medicine may affect fertility. Fertility problems may lead to not being able to get pregnant or father a child. Talk with the doctor.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using Cytomel (liothyronine tablets) while you are pregnant.
- Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.
How is this medicine (Cytomel) best taken?
Use Cytomel (liothyronine tablets) as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- Take Cytomel (liothyronine tablets) at the same time of day.
- If you take colesevelam, colestipol, cholestyramine, kayexalate, or sevelamer, do not take it within 4 hours before or 4 hours after you take Cytomel (liothyronine tablets).
- To gain the most benefit, do not miss doses.
- Keep taking Cytomel (liothyronine tablets) as you have been told by your doctor or other health care provider, even if you feel well.
What do I do if I miss a dose?
- Take a missed dose as soon as you think about it.
- If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of high blood pressure like very bad headache or dizziness, passing out, or change in eyesight.
- Chest pain or pressure or a fast heartbeat.
- A heartbeat that does not feel normal.
- Feeling nervous and excitable.
- Feeling tired or weak.
- Feeling more or less hungry.
- A change in weight without trying.
- Stomach cramps.
- Throwing up.
- Bothered by heat.
- Sweating a lot.
- Feeling irritable.
- Shortness of breath, a big weight gain, or swelling in the arms or legs.
- Emotional ups and downs.
- Trouble sleeping.
- Leg cramps.
- Muscle weakness.
- Bone pain.
- Period (menstrual) changes.
What are some other side effects of Cytomel?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Hair loss may happen in some people in the first few months of using Cytomel (liothyronine tablets). This most often goes back to normal.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Cytomel?
- Store at room temperature.
- Store in a dry place. Do not store in a bathroom.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about Cytomel (liothyronine tablets), please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about Cytomel (liothyronine)
- Cytomel Side Effects
- During Pregnancy or Breastfeeding
- Dosage Information
- Drug Images
- Drug Interactions
- Support Group
- Pricing & Coupons
- En Español
- 22 Reviews
- Generic Availability
- Drug class: thyroid drugs
Other brands: Triostat