1 box contains 30 tabs.Each tab contains 25mg liothyronine sodium.In bodybuilding circles T3 is mostly used as fat-loss drug. Thyroid hormones are often referred to as the metabolic regulators of the body. High levels of T3 speed up the metabolism of an individual, allowing him to burn more calories and use calories more sufficiently. Generally ectopmorphic body-types have very high thyroid levels and in some cases a slight undiagnosed form of hyperthyroidism. Both hyper-and hypothyroidism can have severe consequences on an individual, such as goiters and other nasty stuff, so messing with your thyroid is not something we would advise to beginners. As with insulin, misuse of this compound can leave you dependent on exogenous T3 for the rest of your life . So some caution and research is required before putting T3 in your body. Generally cycles should be limited to 4-6 weeks tops, We recommend 3 and alternating cycles with 3-week cycles of clenbuterol. But most importantly, to avoid a crash or a shock to the thyroid function doses need to be built up over time and tapered off again.