Cytomel is the commonly associated brand name for the synthetic thyroid hormone Liothyronine Sodium. This is a perfect replica of the naturally produced thyroid hormone triiodothyronine, or what is commonly referred to as the T3 hormone. While synthetic Cytomel has been available since the 1950’s, thyroid hormones including T3 have been used medicinally since the 1890’s. Early thyroid treatment plans were simply pure animal extracts and contained pure forms of the T3 and T4 hormone. Extracted thyroid hormones proved very useful in therapeutic treatment plans, specifically in the treatment of hypothyroidism. This is a condition in which the thyroid simply no longer produces enough thyroid hormones, which can lead to weight gain, loss of energy, hair loss and changes in the appearance and texture of the skin. With the introduction of Cytomel, the synthetic model of the T3 hormone, this has provided a much safer and sanitary hormone for such treatments.
Cytomel is not the only synthetic thyroid hormone available. The T4 hormone, Levothyroxine Sodium is also available found under the trade name Synthroid most commonly. Both T3 and T4 are very similar in nature; however, T3 is considered 4-5 times more powerful than T4. T4, in simple terms, acts as a reserve for T3, which makes the Cytomel version the more powerful of the two popular thyroid hormones. While both are effective in treating hypothyroidism, Cytomel is the preferred thyroid hormone among performance enhancement athletes. Anabolic steroid users commonly use Cytomel in an effort to lose body fat.
In a performance setting, Cytomel doses will be very similar to hypothyroidism treatment plans. The individual will normally begin with 25mcg per day and increase the total dose 12.5-25mcg every 2-4 weeks as needed. Most will find they will have no need to go above 75-100mcg per day, with the 125mcg per day range being acceptable for very short periods of time. Such a high dose might be acceptable at the end of a harsh contest diet but should not be a regular dose through the brunt of the diet. As for total use, 6-8 weeks will be the safest total duration. Longer can be acceptable, such as 8-12 weeks, but it does increase the risk of thyroid dependency. However, most healthy adults should not have an issue. Once you have reached your high end dose and it’s time to come off, you are encouraged to drop the dose down to 25mcg per day and hold at that dose for 7-10 days. This will allow the body to adjust and protect you from falling into hypothyroidism. For no reason should you discontinue use abruptly, the 7-10 day low dose is imperative.
For the performance athlete, which represents the majority of Cytomel users, there is a lot of fear that surrounds this hormone. However, much of the fear is misguided and largely based on years of continued internet myth. Yes, use can lead to induced hypothyroidism, but with proper use it is highly unlikely. In fact, there is little data to support the fears often associated with Cytomel use. In fact, while the guidelines we gave you are the safest, most data shows that Cytomel could be used for extremely long periods of time without damage. It is actually possible to use Cytomel for the majority of the year, not all at once but for the individual to be on Cytomel more during the year than not. This is possible, more than possible while maintaining a properly functioning thyroid so as long as the individual comes off and allows his body time to normalize. Regardless, you will find very few items on earth to be as powerful for fat loss as Cytomel.