Clenbuterol is a β-2 adrenergic receptor agonist, working on the sympathetic nervous system. It was initially devised to act as a bronchodilator and a smooth muscle relaxant. But its wondrous thermogenic properties took the lead and since then it has become a significant tool in weight loss regime. It is used as an alternative to those harsh steroids available in the market.

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Clenbuterol helps during the cutting phase of the whole bodybuilding procedure in which a person tries to offload fat accumulated in abdominal and visceral areas which are retained during the preceding bulking phase. It also helps to enhance the energy during the bulking phase. It exerts adrenaline like fright, flight and fight effects on the body. The long half-life makes it unsafe, therefore it is not FDA approved for clinical use. The best weight loss protocol using Clenbuterol should calorie deficit of almost 50% and plenty of fluid intakes, otherwise, it will not express any muscle slimming effect. A perfect Clen cycle can only be designed if the person considers it’s half-life, contraindications, and side-effects together, to decide a per day dose.

Clen Cycles

For Beginners, it is recommended to take Clen after few weeks of finishing a bulking cycle, not right after it to safeguard the muscle gains. Clenbuterol is offered in 20 to 200 mcg pills. There are injectable forms too for all the doses. This drug is also available as Syrup, pump, spray pen, inhaler and also as a bulk powder. A beginner (male) should not cross the dose of 40mcg on the first day. For women, the dosage is 20mcg. Side effects generate after 3-4 days. One can increase the dose (per day one tablet of 20mcg extra) until the side-effects become excruciating. However, for the first ever cycle, the dose shouldn’t exceed 100mcg/day for men. The up-gradation of dosage is more slow but gradual in females. For beginners, the usual Clen cycle duration should be of two weeks. If you supplement Clen with a diet containing low fat, adequate carbs and heavy protein in the proportions of 0.25:0.5:1.5 per pound of your body weight, the weight loss would be enormous!

The bodybuilders even stack Clen with Cytomel to increase the efficiency of oxygen consumption by the body and enhance the effects of beta-adrenergic receptors, thus making them more sensitive towards the agonists like Clenbuterol. It is stacked with numerous other drugs like Taurine, Ketotifane, testosterone or its derivatives for quicker and superior results. Its thermogenic effects diminish after two months, leading to body’s temperature approaching to normal. The anti-catabolic actions drive away after 18 days. An ideal Clenbuterol cycle would be two weeks on cycle followed by two weeks off for up to 12 weeks or less, considering the half-life of the drug.


These can range from very mild to extremely severe effects. Some people do not even experience any side-effect at all. Everything depends upon the dosage of the drug and how well it is accompanied with nutritional diet. The effects can be nausea, headache, insomnia, muscle cramps, acidity, increased blood pressure, dry mouth. One should take more fluids to avoid most of the problems.

Taking Clenbuterol can prove to be the best weight loss protocol ever if taken with utmost care and understanding of one’s own body.