Liothyronine Sodium T3

Liothyronine Sodium

Alias: Cytomel T3; 3, 3′, 5-triiodothyronine sodium
CAS No: 55-06-1
Einecs No: 200-223-5
MF: C15H11I3NNaO4
MW: 672.96
Purity: 99.0%
Appearance: White or light yellow powder, almost tasteless. 
Usage: Indicated as a sympathicolytic and mydriatic. It may have activity as an aphrodisiac. It is suitable for various causes of hypothyroidism. 



T3 in the body is responsible for regulating the uptake of various nutrients into cells and into the mitochondria of those cells in order to effectively become utilized for the production and consumption of energy. 
The bodybuilding and athletic world is attracted to the use of T3 as a physique and/or performance enhancing drug because of its capability to distinctly boost the body’s metabolism in the effort to metabolize body fat at a greater rate. 

T3 is traditionally utilize during cutting, dieting, and/or pre-contest phases of training due to the universal goal of these phases to break down body fat, though in recent years Cytomel has gained some popularity as a useful agent during bulking and mass gaining phases of training (normally in conjunction with anabolic steroids) in order to better efficiently process nutrients and/or to keep body fat levels down during periods of higher caloric intake. 
Cytomel (T3) is commonly used with anabolic steroids due to its significant impact on the body’s metabolism as a whole. It is very important to understand that T3 is indiscriminate in its metabolism boosting properties it will increase the metabolism of fats, carbohydrates, and protein all equally. 

Therefore, beyond a particular dose of T3, there is an increased risk of muscle loss through increased turnover of protein. Through the use of anabolic steroids and a properly adjusted diet, this muscle loss as a result of T3 can be prevented as a result of the nitrogen-retaining and protein sparing properties of theanabolic steroids. 
Cytomel (T3) is also commonly combined with other fat loss agents in order to increase its overall effect, as it does work synergistically with other fat loss agents. 


Cytomel (T3) does speed fat loss. As a guideline, for most 12.5 mcg/day is a conservative “supplement” sort of dosing that seems to have no detectable adverse effect on thyroid function at all. 25 mcg/day is a “supplement” sort of dosing that does have some inhibitory effect. 50 mcg/day is a reasonably conservative bb’ing sort of dose that, of course, is more inhibitory. 75 mcg/day is getting into more of a problem area; 100 mcg/day in many cases leads to loss of muscle size and strength. 

These doses are in reference to legit T3 provided in tablets such as Cytomel. Liquid formulations are usually unstable and as a result, the above numbers in many cases won’t match up to experiences with liquid products, or for that matter, experience with a liquid product at one time may not match up with experience at a different time, due to the stability problem. 

Individuals do vary in this but 100 mcg/day is very often quite weakening and muscle-catabolic. So far as wanting more rapid fat loss than what is achieved with 50 mcg/day, personally I’d look elsewhere than adding more T3.