Thyroid or Triroid is not an anabolic steroid but a thyroid hormone. Thyroid is a compound of T3 and T4. It is used medically to treat cases of thyroid insufficiency, obesity, certain metabolic disorders and fatigue. When administered, Thyroid 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 Thyroid 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 Thyroid 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. Thyroid is also noted by many that when thyroid hormones are taken in conjunction with steroids, an increased anabolic effect can be seen. The common dose is a double dose of T3 or T4, usualy from 40 mg to 120 mg per day. Thyroid shouldn't be taken for a longer period than 4 to 6 weeks and it should be cycled down off the product to keep Thyroid functioning properly.