What is Liotrix?

Liotrix is a 4:1 mixture of thyroxine (T4) and triiodothyronine (T3) made synthetically. It is used to replenish thyroid hormones in thyroid deficiency and hypothyroidism. The only brand of liotrix available in the U.S. is Thyrolar, manufactured by Forest Laboratories.

As of 2013, Forrest Laboratories has released the following statement regarding the limited availability of Liotrix:" U.S. Pharmacopeia, an official public standards-setting authority for prescription and over-the-counter medicines and other health care products manufactured or sold in the United States, has mandated new specifications for a component used in the manufacturing of Thyrolar. As a result, all strengths of Thyrolar are currently on long-term back order while modifications necessary to meet these new specifications are made."

Questions and answers on "Liotrix"

Hello, I am a 23 year old female and weigh 120 pounds. The last six months I have had fatigue, brain fog, panic attacks, lactation (no pregnancy),...

doctor1 MD

Brief Answer:
? Subclinical hypothyroidism

Detailed Answer:
Thank you for choosing XXXXXXX Your previous symptoms like lactation, irregular...

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i am 29 years old man from Maldives. I have done a surgery to remove total thyoid from KIMS hospital in trivandrum and i am taking two tablets of...

doctor1 MD

Dear fadde
welcome to heathcaremagic
Symptoms of low thyroid levels include fatigue, muscle aches, constipation, dry skin, weight gain, slow heart...

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TOTAL THYROXINE (T4)9.4 micro gm/dl

doctor1 MD

Hi Dear,

It is not clear if you are taking thyroid medications now. If not, the blood tests shows that you have a condition called Subclinical...

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