Clenbuterol

Clenbuterol is a beta-2 agonist and bronchodilator that happens to have one of the most misused reputations in this entire market. As a bronchodilator it is genuinely effective for asthma. As a weight-loss drug it has a hard-earned reputation for fat loss, and an equally earned reputation for cardiac risk that is worse than anything else in this category.

The heart is the real issue

This is not a warning that is easy to tune out. Clenbuterol raises heart rate, blood pressure and tremor at doses people use for fat loss, and the cardiovascular consequences are documented and occasionally fatal in otherwise healthy users. It also causes the infamous down-regulation - the receptors desensitise over a couple of weeks, the effect fades, and the temptation to raise the dose is exactly how people get into trouble.

Verification

• Label names clenbuterol and states the form - hydrochloride or dihydrochloride - with mcg or mg per ml or tablet. Unit confusion is common and dangerous here.
• Solution should be clear, no particulates.
• Check batch, expiry and seal.
• There is no safe consumer version of this cardiotoxicity profile.