Liothyronine (Na)
Generic medicine reference
Not yet clinically reviewed
This entry was migrated from the earlier Pharmapedia app bundle and has not been reviewed by a named clinician on this site. It is provided for educational reference only — verify dosage and safety information against current, authoritative sources and a qualified healthcare professional before any clinical use.
Overview
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.
Indications
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.
Contraindications
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:
problems with your pituitary or adrenal gland; heart disease , angina (chest pain); a bleeding or blood clotting disorder; diabetes; or osteoporosis or low bone mineral density.
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.
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:
weak or shallow breathing; confusion; a feeling of being cold all the time; changes in weight or appetite; chest pressure spreading to your jaw or shoulder; a light-headed feeling, like you might pass out; severe headaches, ringing in your ears, dizziness, vision problems, pain behind your eyes; a seizure; or (in a child or teenager) pain, stiffness, and trouble moving the legs.
Common side effects of liothyronine may include:
trouble breathing; headache; tremors, feeling nervous or irritable; muscle weakness; increased appetite; diarrhea; irregular menstrual periods; weight loss ; feeling hot; rash; or sleep problems ( insomnia ).
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.
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.
High Risk Groups
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.
Adult Dosage
0.25 to 0.714 ug/kg (0.48 (0.482)) 12 hourly IV — -
Scraped Dose — 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.
Child Dosage
0.625 ug/kg (0.62 (0.625)) 24 hourly Oral — Initial
1 to 1.5 ug/kg (1.2 (1.25)) 8 hourly Oral — Maintenance , As Required
Neonatal Dosage
0.312 to 1.25 ug/kg (0.78 (0.781)) 8 hourly Oral — Maintenance
0.625 ug/kg (0.62 (0.625)) 24 hourly Oral — Initial, Gradually increase to maintenance dose
Drug Interactions
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.
cholestyramine ; colesevelam ; colestipol ; or sevelamer .
Tell your doctor about all your current medicines. Many drugs can affect liothyronine, especially:
cancer medicine; birth control pills or hormone replacement therapy; cough or cold medicine; an antidepressant; steroid medicine; seizure medicine; insulin or oral diabetes medicine; or a blood thinner ( warfarin , Coumadin , Jantoven ).
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.
Storage
Tab Store Below 40°C. Protect from Sunlight and Moisture.
Available Brands in Pakistan
No brands are recorded for this generic.