Thermalgenic, anticatabolic

Clenbuterol is a sympatho-mimetic agent, not a steroid. As such, its main characteristics are:

(1) Peripheral excitatory or inhibitory action on certain types of smooth muscles

(3) increase in heart rate and force of contraction;

(4) increase in the rate of glycogenolysis in liver and muscle implying the liberation of free fatty acids from adipose tissue;

(5) Modulation of the secretion of insulin, rennin, and pituitary hormones;

(6) Respiratory stimulation

(7) Facilitation of norepinephrine and acetylcholine release.

Clenbuterol elevates the body temperature shortly after intake, from 0.5 to 1 degree.

The benefits of this drug will only last for a limited time before diminishing, due to b-receptor downregulation. Indeed, b-receptors affinity to Clenbuterol seem to decrease after two days.
Side Effects:
The possible side effects of Clenbuterol hydrochloride include shaky hands, insomnia, sweating, increased blood pressure, and nausea. These side effects shall appear after a week or so of use, but I personally never experienced any of them.
Administration
As previously mentioned, b-receptors affinity to Clenbuterol start to strongly decline after two days of use. Some people choose to use it for a week long, although others stop the intake every other day for two days break. The fat burning effect of Clenbuterol can be enhanced when combined with thyroid hormones, specifically the powerful Cytomel.

It is also believed to enhance the thermogenic and anabolic effect of HGH therapy.

Cytomel isn’t a steroid hormone, but a synthetic L-isomeric form of the natural T3 Triodotyronine hormone. Thyroid hormones are involved in a large panel of physiologic activities involving protein, carbohydrates and fat metabolism… They enhance protein assimilation and body fat consumption. In the body, T3 is converted from T4 in the liver and is far more effective. Indeed, T4 effectiveness is 20% of T3’s.

Mainly used for cutting, this hormone can be employed with other cutting agents like beta agonists or Human Growth Hormone for even more effectiveness.

The average dosage is from 25 to 150 µg daily. In a cycle, the dose can be progressively increased every several days, instead of abruptly changed, in order to allow the body to adapt and temper possible side effects. These side effects can be headache, irritability, nervousness …

In the same idea, a cycle shouldn’t be halted at once and should not last more than six weeks. Similarly with what happens with steroids, the intake of T3 down-regulates endogenous thyroid production. In this case however, after discontinuance no known product can help to a quick recovery. But it is said that a rebound usually occurs, with 20% or more Thyroid synthesis above normal. Some literature says on the contrary, that abusing the thyroid on a long term will suppress its functioning for a lifetime. This is obviously a point to be taken into consideration, even if I have not found a paper of study supporting it.