Liothyronine Sodium
Hypothyroidism, Hyperthyroidism, euthyroid Goitre + 6 more
Treatment
7 FDA approvals
20 Active Studies for Liothyronine Sodium
Treatment for
Hypothyroidism
What is Liothyronine Sodium
Liothyronine
The Generic name of this drug
Treatment Summary
Liothyronine is a thyroid hormone used to replace or supplement the naturally-occurring hormone made by the thyroid gland. It is composed of a tyrosine molecule with a bound iodine and is the active form of the hormone thyroxine. Liothyronine was developed by King Pharmaceuticals and approved by the FDA in 1956.
Cytomel
is the brand name
Liothyronine Sodium Overview & Background
Brand Name
Generic Name
First FDA Approval
How many FDA approvals?
Cytomel
Liothyronine
1956
94
Approved as Treatment by the FDA
Liothyronine, commonly known as Cytomel, is approved by the FDA for 7 uses like Hyperthyroidism and Hypothyroidism .
Hyperthyroidism
Hypothyroidism
Helps manage Hypothyroidism
euthyroid Goitre
Helps manage euthyroid Goitre
Hypothyroidism
Helps manage Hypothyroidism
suppression test
Thyroid Gland
Hyperthyroidism
Effectiveness
How Liothyronine Sodium Affects Patients
Liothyronine works faster than levothyroxine to replace hormones, but its effects don't last as long. Careful evaluation is needed when using this drug since it can cause heart failure if taken too quickly. It usually starts to work a few hours after taking it and reaches its full effect after 2-3 days. Studies have shown that liothyronine produces normal levels of T3 in the body, but doesn't affect T4 levels.
How Liothyronine Sodium works in the body
Liothyronine mimics the effects of the thyroid hormone. It works by binding to the receptors in our DNA and stimulating protein and DNA production. It increases energy, helps cells burn quickly, helps mature and grow body tissues, aids in nervous system development, and boosts carbohydrate and protein metabolism.
When to interrupt dosage
The suggested measure of Liothyronine Sodium is contingent upon the diagnosed condition, including suppression test, Thyroid Gland and Comatose. The quantity of dosage can be found in the table below, dependent upon the technique of delivery (e.g. Intravenous or Oral).
Condition
Dosage
Administration
Hypothyroidism
, 0.025 mg, 0.005 mg, 0.05 mg, 0.01 mg/mL, 0.009 mg, 0.0045 mg, 0.0135 mg, 0.00225 mg, 0.018 mg, 0.0031 mg, 0.00625 mg, 0.0375 mg, 0.02 mg, 0.0125 mg, 0.027 mg
, Oral, Tablet, Tablet - Oral, Intravenous, Injection, solution, Injection, solution - Intravenous, Injection, Injection - Intravenous, Tablet - Topical, Topical
myxedema pre-coma
, 0.025 mg, 0.005 mg, 0.05 mg, 0.01 mg/mL, 0.009 mg, 0.0045 mg, 0.0135 mg, 0.00225 mg, 0.018 mg, 0.0031 mg, 0.00625 mg, 0.0375 mg, 0.02 mg, 0.0125 mg, 0.027 mg
, Oral, Tablet, Tablet - Oral, Intravenous, Injection, solution, Injection, solution - Intravenous, Injection, Injection - Intravenous, Tablet - Topical, Topical
suppression test
, 0.025 mg, 0.005 mg, 0.05 mg, 0.01 mg/mL, 0.009 mg, 0.0045 mg, 0.0135 mg, 0.00225 mg, 0.018 mg, 0.0031 mg, 0.00625 mg, 0.0375 mg, 0.02 mg, 0.0125 mg, 0.027 mg
, Oral, Tablet, Tablet - Oral, Intravenous, Injection, solution, Injection, solution - Intravenous, Injection, Injection - Intravenous, Tablet - Topical, Topical
Thyroid Gland
, 0.025 mg, 0.005 mg, 0.05 mg, 0.01 mg/mL, 0.009 mg, 0.0045 mg, 0.0135 mg, 0.00225 mg, 0.018 mg, 0.0031 mg, 0.00625 mg, 0.0375 mg, 0.02 mg, 0.0125 mg, 0.027 mg
, Oral, Tablet, Tablet - Oral, Intravenous, Injection, solution, Injection, solution - Intravenous, Injection, Injection - Intravenous, Tablet - Topical, Topical
Hyperthyroidism
, 0.025 mg, 0.005 mg, 0.05 mg, 0.01 mg/mL, 0.009 mg, 0.0045 mg, 0.0135 mg, 0.00225 mg, 0.018 mg, 0.0031 mg, 0.00625 mg, 0.0375 mg, 0.02 mg, 0.0125 mg, 0.027 mg
, Oral, Tablet, Tablet - Oral, Intravenous, Injection, solution, Injection, solution - Intravenous, Injection, Injection - Intravenous, Tablet - Topical, Topical
Thyroid Cancer
, 0.025 mg, 0.005 mg, 0.05 mg, 0.01 mg/mL, 0.009 mg, 0.0045 mg, 0.0135 mg, 0.00225 mg, 0.018 mg, 0.0031 mg, 0.00625 mg, 0.0375 mg, 0.02 mg, 0.0125 mg, 0.027 mg
, Oral, Tablet, Tablet - Oral, Intravenous, Injection, solution, Injection, solution - Intravenous, Injection, Injection - Intravenous, Tablet - Topical, Topical
supplemental or replacement therapy
, 0.025 mg, 0.005 mg, 0.05 mg, 0.01 mg/mL, 0.009 mg, 0.0045 mg, 0.0135 mg, 0.00225 mg, 0.018 mg, 0.0031 mg, 0.00625 mg, 0.0375 mg, 0.02 mg, 0.0125 mg, 0.027 mg
, Oral, Tablet, Tablet - Oral, Intravenous, Injection, solution, Injection, solution - Intravenous, Injection, Injection - Intravenous, Tablet - Topical, Topical
euthyroid Goitre
, 0.025 mg, 0.005 mg, 0.05 mg, 0.01 mg/mL, 0.009 mg, 0.0045 mg, 0.0135 mg, 0.00225 mg, 0.018 mg, 0.0031 mg, 0.00625 mg, 0.0375 mg, 0.02 mg, 0.0125 mg, 0.027 mg
, Oral, Tablet, Tablet - Oral, Intravenous, Injection, solution, Injection, solution - Intravenous, Injection, Injection - Intravenous, Tablet - Topical, Topical
Comatose
, 0.025 mg, 0.005 mg, 0.05 mg, 0.01 mg/mL, 0.009 mg, 0.0045 mg, 0.0135 mg, 0.00225 mg, 0.018 mg, 0.0031 mg, 0.00625 mg, 0.0375 mg, 0.02 mg, 0.0125 mg, 0.027 mg
, Oral, Tablet, Tablet - Oral, Intravenous, Injection, solution, Injection, solution - Intravenous, Injection, Injection - Intravenous, Tablet - Topical, Topical
Warnings
Liothyronine Sodium Contraindications
Condition
Risk Level
Notes
Adrenal Insufficiency
Do Not Combine
Thyrotoxicosis
Do Not Combine
There are 20 known major drug interactions with Liothyronine Sodium.
Common Liothyronine Sodium Drug Interactions
Drug Name
Risk Level
Description
Abacavir
Minor
Liothyronine may decrease the excretion rate of Abacavir which could result in a higher serum level.
Acetaminophen
Minor
Liothyronine may decrease the excretion rate of Acetaminophen which could result in a higher serum level.
Aclidinium
Minor
Liothyronine may decrease the excretion rate of Aclidinium which could result in a higher serum level.
Acrivastine
Minor
Liothyronine may decrease the excretion rate of Acrivastine which could result in a higher serum level.
Adrenalone
Minor
Liothyronine may increase the vasoconstricting activities of Adrenalone.
Liothyronine Sodium Toxicity & Overdose Risk
The highest toxic dose of liothyronine in rats has been found to be greater than 4540mg/kg. Overdosing on liothyronine can cause signs of hyperthyroidism as well as confusion, disorientation, stroke-like symptoms, seizures, shock, coma, and death. These symptoms may appear soon after the overdose or several days later. If an overdose occurs, the liothyronine dose should be reduced and supportive treatments should be given. There is no evidence that liothyronine has any effect on fertility or can cause cancer or genetic mutations.
Liothyronine Sodium Novel Uses: Which Conditions Have a Clinical Trial Featuring Liothyronine Sodium?
45 active clinical trials are currently investigating the potential of Liothyronine Sodium to treat Hyperthyroidism, myxedema pre-coma and perform Suppression Tests.
Condition
Clinical Trials
Trial Phases
Thyroid Cancer
38 Actively Recruiting
Phase 2, Not Applicable, Early Phase 1, Phase 1, Phase 3
Comatose
0 Actively Recruiting
Thyroid Gland
0 Actively Recruiting
myxedema pre-coma
0 Actively Recruiting
suppression test
0 Actively Recruiting
Hyperthyroidism
0 Actively Recruiting
Hypothyroidism
6 Actively Recruiting
Phase 2, Phase 4, Phase 3, Not Applicable
euthyroid Goitre
0 Actively Recruiting
supplemental or replacement therapy
0 Actively Recruiting
Liothyronine Sodium Reviews: What are patients saying about Liothyronine Sodium?
5
Patient Review
5/11/2017
Liothyronine Sodium for Mild Underactive Thyroid
4.7
Patient Review
12/29/2014
Liothyronine Sodium for Mild Underactive Thyroid
4.7
Patient Review
7/27/2014
Liothyronine Sodium for T3 Suppression for Thyroid Function Test
4
Patient Review
8/30/2018
Liothyronine Sodium for Mild Underactive Thyroid
3
Patient Review
9/22/2016
Liothyronine Sodium for Mild Underactive Thyroid
2.7
Patient Review
5/16/2014
Liothyronine Sodium for Mild Underactive Thyroid
2.7
Patient Review
2/13/2017
Liothyronine Sodium for Mild Underactive Thyroid
2
Patient Review
6/7/2014
Liothyronine Sodium for Serious Decrease in Thyroid Function
2
Patient Review
7/19/2014
Liothyronine Sodium for T3 Suppression for Thyroid Function Test
2
Patient Review
9/10/2013
Liothyronine Sodium for Mild Underactive Thyroid
1.7
Patient Review
12/15/2013
Liothyronine Sodium for Mild Underactive Thyroid
1
Patient Review
8/9/2017
Liothyronine Sodium for Mild Underactive Thyroid
Patient Q&A Section about liothyronine sodium
These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.
What is Liothyronine sodium used for?
"Liothyronine is a medication used to treat hypothyroidism, a condition where the thyroid gland does not produce enough thyroid hormone. It can also help decrease the size of an enlarged thyroid gland (goiter) and treat thyroid cancer."
Answered by AI
Does liothyronine cause weight gain?
"LT3 is more effective than LT4 at causing weight loss in older adults with subclinical hypothyroidism, according to a study presented at ENDO 2021."
Answered by AI
What are the side effects of taking T3?
"The text describes symptoms which may be indicative of a heart attack, such as weakness or shallow breathing, confusion, feeling cold, changes in weight or appetite, chest pressure, lightheadedness, severe headaches, and dizziness."
Answered by AI
When should I take Liothyronine sodium?
"Swallow the medication whole with plenty of water. You should take it on an empty stomach, at least 30 minutes before or 2 hours after eating. Follow the directions on the prescription label. Take the medication at the same time each day."
Answered by AI