CYTOMEX T350 (Liothyronine)

Cytomex T350 (Cytomel) is the popularly recognized brand name for the drug Liothyronine Sodium. This is not an anabolic steroid but a thyroid hormone. It is used medically to treat cases of thyroid insufficiency, obesity, certain metabolic disorders and fatigue. Specifically, this drug is a pharmaceutical preparation of the natural thyroid hormone Triiodothyronine (T-3). When administered, Cytomex T350 increases the patient’s metabolism. The result is an increased rate of cellular activity (noted by a more rapid utilization of carbohydrates, fats and proteins).

Bodybuilders are particularly attracted to this drug for its ability to burn off body excess fat. Most often utilized during contest preparation, one can greatly decrease the amount of stored fat without being forced to severely restrict calories. To this end Cytomex T350 is commonly used in conjunction with Clenbuterol and can produce extremely dramatic results. This combination has become very popular in recent years, no doubt responsible for many “ripped” on-stage physiques. It is also noted by many that when thyroid hormones are taken in conjunction with steroids, an increased anabolic effect can be seen (noticeably greater than if the steroids are used alone). This is likely due to faster utilization of proteins by the body, increasing the rate for new muscle accumulation.


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Packaging: 90 capsules in a sealed bottle.
Liothyronine Sodium (Cytomel) USP 50mcg
Excipients q.s.

Dosage & administration:

Half life
2 days
50-300mcg per day or as required
Average Cycle Length
2-4 weeks but can be extended by utilising a 5 day on 2 day off repeat cycle (matched with Clenbuterol)
Anabolic #
Androgenic #
Oral Bioavailability
Estimated at 80%
CAS Name
Sodium (S)-2-amino-3-[4-(4-hydroxy-3-iodophenoxy)-3,5-diiodophenyl]-propanoate
T3, Cytomel