Liothyronine Sodium


Liothyronine sodium – synthetic thyroid hormone. He is the L-isomer of a natural triiodothyronine (T3). Thyroid hormones speed up the metabolism, and therefore they are used for medicinal purposes to fight thyroid insufficiency, obesity, metabolic disorders, and fatigue. Triiodothyronine also used when the patient’s thyroid gland does not produce the desired level of thyroid hormones. Hypothyroidism is detected by analysis on hormones (T3, T4 and TSH), and has features as sleepiness, weight gain, loss of hair, and changes in skin texture. T3 is more active in the human body and it is stronger than the preparations of levothyroxine (T4).

Bodybuilders have resorted to the drug when it is necessary to burn excess fat. It is most commonly used in the preparation of precompetitive, since his admission can not monitor the amount of calories consumed. It is often used in conjunction with sympathomimetic and growth hormone. Some use them to “course” to strengthen the anabolic effect of anabolic steroids. In theory, they can increase the utilization of protein and carbohydrates in the process of muscle growth.


T3 was first used for the treatment of myxedema in 1891. Natural thyroid extracts have been in the course of about 60 years. In the 1950s there were synthetic liothyronine and levothyroxine, which are also worked as extracts of animal components. These drugs are available in the market today.

Product form:

Liothyronine sodium is usually produced in the form of tablets 5mkg, 25mkg or 50mkg.

Structural features:

Liothyronine sodium – a synthetic form of the T3 hormone. Its chemical formula is L-tyrosine, o- (4-hydroxy-3-iodophenyl) -3,5-diyodo-, monosodium salt.


FDAtrebuet print on preparations sodium liothyronine warning that its misuse can lead to life-threatening consequences.

Side effects:

Side effects associated with overdose and include headache, irritability, sweating, irregular heartbeat, increased bowel motility, and menstrual irregularities. Overdosing may cause shock or provoke angina. Chronic overdose has symptoms of hyperthyroidism. Acute severe overdose can be life-threatening.


Most bodybuilders to burn fat is enough to start with 25mkg doses per day. This dose may be increased every 4-7 days in steps of 25mkg, but it should not exceed 75mkg. The faster the increase in the dose – the more likely side effects. This drug should not be taken for more than 6 consecutive weeks and throwing his reception once it is impossible – it is necessary to reduce the dose gradually by 25mkg every 4-7 days.

Showing all 2 results