Clenbuterol

$60 $50
Clenbuterol is a β-agonist that is not classified as a steroid and does not exhibit hepatotoxicity. It effectively stimulates fat breakdown and prevents muscle catabolism, making it particularly suita

Performance

Strength Increase：

★ ★★★★

Muscle Gain：

★ ★★★★

Reduce Fat/Water：

★★★★★

Side Effects：

★★★★ ★

Sustained Effects：

★★ ★★★

SKU：

40mcg/tablet × 100 tablets/box

Package：

tablet

Appearance：

oral

Dosage：

1-4 tablets/day

Cycle：

4–6 weeks

Product Description:

Clenbuterol is an anti-asthma medication that acts on the sympathetic nervous system. It affects the sympathetic nervous system in various ways, largely related to receptor-mediated distribution. There are nine different receptors in the human body, divided into α-receptors and β-receptors. Clenbuterol is known for its specificity towards various receptors and can be used to treat diseases such as asthma, hypertension, cardiovascular shock, arrhythmias, migraines, and anaphylactic shock. The pharmacological basis for these drugs and how they affect our bodies is detailed in the 9th edition of Goodman & Gilman's "The Pharmacological Basis of Therapeutics."


The basic actions of catecholamines and sympathomimetic drugs can be divided into seven categories:

(1) Peripheral excitation of certain smooth muscles, such as those in the skin, kidneys, mucous membranes, gland cells, salivary glands, and sweat glands.

(2) Peripheral inhibition of some other types of smooth muscles, such as intestinal walls, bronchi, and blood vessels supplying skeletal muscles.

(3) Cardiac excitation, increasing heart rate and myocardial contraction.

(4) Metabolic actions, increasing glycogenolysis in the liver and muscles and the rate of free fatty acid release from adipose tissue.

(5) Secretory effects, regulating the secretion of insulin, renin, and pituitary hormones.

(6) Central nervous system actions, such as stimulating respiration, enhancing alertness, increasing motor activity, and reducing appetite.

(7) Presynaptic actions, inhibiting or promoting the release of neurotransmitters such as adrenaline and acetylcholine.


Clenbuterol primarily stimulates β-adrenergic receptors, mainly affecting three β-receptor subgroups. Interestingly, clenbuterol also has some β1 stimulatory activity. Because clenbuterol interacts with β1 receptors, it can produce cardiovascular effects, reducing reversible airway obstruction (β2 stimulatory effect) compared to those drugs that do not stimulate β-receptors. Clinical studies have shown that it has significant bronchodilatory effects, with few complaints from users and high patient compliance. Clenbuterol has a long half-life in the body, about 34 hours, allowing blood levels to remain stable with once or twice daily dosing. The ease of use for patients likely contributes to its high compliance.


In animal studies, clenbuterol has shown anabolic properties, which has attracted a broad interest from fitness enthusiasts and athletes. Additionally, it is a thermogenic compound that, when used with other β-agonists like Clenbuterol hydrochloride, can directly stimulate fat cells and accelerate the breakdown of triglycerides into free fatty acids. Its effectiveness in this area has made clenbuterol a popular weight loss drug in the fitness community, who hope to increase muscle strength and quality while shedding fat. However, as highlighted in a review published in the August 1995 issue of "Medicine and Science in Sports and Exercise," the anabolic effects of clenbuterol in humans are debatable, and data under high-dose conditions are more extensive than those applied for therapeutic bronchodilation. This has sparked much debate over whether clenbuterol has anabolic properties. Some assertively claim it can build muscle and be used off-season as a non-exercise pharmaceutical and anabolic adjunct. Yet others believe, as confirmed by the MSSE report, that many athletes have wasted money and time without seeing muscle growth benefits. This debate continues today.


Product History:

Clenbuterol has been widely used as a bronchodilator for decades around the world. Although it has been approved in many countries and has a safe and effective record of use, it has never been approved for human use in the United States. This is likely because the FDA has approved many other effective asthma treatments, and pharmaceutical companies do not see enough profit in a new product to offset the costs of the approval process. Even so, clenbuterol is still widely circulated on the black market and is favored by American athletes and fitness enthusiasts. Be aware that in recent years, there have been multiple reports of poisoning from clenbuterol overdoses, raising doubts about its safety and the debate over the balance between high doses and potent effects.


Available Forms:

Clenbuterol is commonly available in oral tablet form, each tablet containing 20 micrograms. It is also available as an oral syrup, injectable solution, and for inhalation.


Structural Characteristics:

Clenbuterol is a long-acting type 2 adrenergic receptor agonist with the chemical name 1-(4-amino-3,5-dichloro-phenyl)-2-(tertbutylamino) ethanol.


Side Effects:

Clenbuterol's side effects are similar to those of other central nervous system stimulants, including hand tremors, insomnia, elevated blood pressure, and nausea. These side effects generally subside after a week of use as the body gradually adapts. Note that clenbuterol is a potentially lethal central nervous system stimulant. Overdoses can cause rapid breathing, abnormal blood pressure, irregular heartbeats, unconsciousness, shaking, panic, extreme restlessness, severe nausea, vomiting, or diarrhea.


Treatment Guidelines:

For treating asthma, the adult dosage is one tablet (20mcg) twice daily, with some patients requiring two tablets (40mcg) twice daily. For enhancing physique or improving sports performance, fitness enthusiasts and athletes can adjust the dosage based on needs and individual tolerance. To establish tolerance, start with one or two tablets per day and gradually increase to half to one tablet every three days until a suitable dosage level is established. During peak treatment phases, some patients may take 6-8 tablets per day (120-160mcg). Given the potential for severe side effects, caution is advised when seeking dosages beyond the normal therapeutic range.


After taking, patients typically experience an increase in body temperature by approximately 0.5-1 degree Celsius or slightly more, as the body burns excess energy (fat), although this phenomenon usually does not cause discomfort. The duration of clenbuterol use depends on individual responses, but its benefits only last for a certain period before diminishing, mainly due to β-receptor downregulation. In most cases, clenbuterol's effects can last 4-6 weeks. During this period, patients should regularly monitor their body temperature. According to feedback, clenbuterol is effective when body temperature is elevated; once the temperature returns to normal levels, receptor response downregulation occurs, and drug effectiveness may decrease. Based on this, increasing the dosage is generally not considered effective. Instead, a break in clenbuterol use should not exceed 4-6 weeks.


Many fitness enthusiasts enhance the fat-burning effects by combining other products. For instance, thyroid hormones, especially Cytomel (T3), significantly increase the thermogenic effect. Such combinations can enhance their physique more dramatically. When using growth hormones, clenbuterol is often combined with thyroid hormones to enhance the thermogenic and metabolic effects of the growth hormone therapy. Finally, ketotifen is also a common adjunct with clenbuterol, an antihistamine that can upregulate β-receptor density. Ketotifen not only increases the potency of clenbuterol (allowing for lower doses of clenbuterol to be used) but also slows receptor response downregulation.


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