Basically Clenbuterol is a bronchodialator and decongestant. It is prescribed to the patients with chronic breathing problems like asthma.
But now it is claimed to cause a rapid weight loss, without any exercise. This chemical is more nearer to Ephedrine in its action. However, it is a stronger stimulant and has longer lasting thermogenic effect. And so, the possible side effects, too, would be stronger than ephedrine
Mode of action:
Clenbuterol stimulates central nervous system and may have enhancing effect on the blood pressure. It stimulates the rate of fat oxidation and also reduces storage of glycogen. Because of these properties clenbuterol is being used as a weight loss agent. However, its slimming properties are not scientifically proved yet.
This chemical acts on the smooth muscle of the body, including the heart. It increases the heart rate, effectively burning more calories. But this same property can pose risk of cardio-vascular problems for the user.
Clenbuterol is a beta-2 adrenergic agonist, that is, this drug creates same effect like that of hormone adrenalin in the body…. Increases heart rate. But clenbuterol has effect on only one adrenalin-sensitive receptor, the beta-2 receptor. These beta type of receptors cause the increase of heart beating, fat oxidation and also, growth in the muscle mass.
By thermogenesis it consumes calories through heat production and by lipolysis it oxidizes the stored body fat.
When clenbuterol is used for weight loss, the dosage is gradually increased over several days. Then it is found to give a maximum weight loss after four weeks. Once body gets used to the effects of clenbuterol, it becomes less effective for weight loss. So continuation of clenbuterol after four weeks does not show any further increase in weight loss. Even if the dose is increased, it may give very little additional benefit, at the same time, the side effects would increase. So people use it as on and off drug.
But drug abuse or if used in excess, might give side effects which may result in hospitalization. Generally clenbuterol for weight loss is given in small amount of 20mg / tablet. As it is very potent and strong drug, the dosage is very small. Depending upon the drug tolerance, dose is gradually increased, starting with one tablet going to 2-4 for women and 2-8 for men.
A banned drug:
It is legal to use this drug only on the animals, especially horses. Its sale for human beings is banned in USA. But still people get it illegally through internet etc. because it raises body temperature and heart rate, thus burns fat very quickly without any exercise. It also increases muscle mass, so outside USA, body builders and athletes also are known to use it. But it is alarming that the dosage is not adjusted according to the age or sex of the person, because for women, clenbuterol should be given in small doses.
Many female body builders use it, because along with fat loss, it also enhances strength and muscle mass. At the same time, it is not known to give side effects of steroids, like facial hair growth etc.
Although it is allowed in the animals, still it is prohibited in the animals meant for food production. Because clenbuterol is retained in the meat and there is strong possibility of clenbuterol poisoning after consuming such meat.
There are no reports of any long-term studies on the use of clenbuterol for weight loss or its side effects in human beings. So it is not very advisable to use such drug.
When tested on lab animals, it showed undesirable reactions. So it is concluded that if taken in high doses, patient stands a risk of paralytic stroke and heart arrhythmia. Even if the doses are not high, it is shown to give palpitation and dizziness. As clenbuterol is a stimulant like caffeine and ephedrine, it would have similar side effects like sleeplessness, jittery feeling, increase in heart rate and blood pressure, headaches, shaking etc. it is suspected t prove toxic for the liver.
Experts are of the opinion that a healthy diet and exercise would be a far better option than taking risk with a strong stimulant like clenbuterol, which is used for the horses. The risks and bad side effects of clenbuterol outweigh its weight loss benefits.