Top Definition
Clenbuterol is a drug prescribed to sufferers of breathing disorders as a decongestant. People with chronic breathing disorders like asthma use this as a bronchodilator to make breathing easier. It is most commonly available in salt form as Clenbuterol hydrochloride. Clenbuterol is often mistaken for a steroid because of its illicit use in athletics.

Also referred to as Clen, people who abuse this drug typically do it for its slimming effects. It is a stimulant similar to ephedrine, only much longer-lasting. When taken daily, the abuser can lose up to ten pounds in two weeks.

Clen is rumored to be very popular in Hollywood, especially slim It-girls. Nicole Richie and Ashlee Simpson are among those that have allegedly used Clenbuterol to lose weight.
I just got these new Clenbuterol-pill thingies from my stylist, and she says they're gonna help me fit into my 00 Karl Lagerfeld gown. Don't worry! I'm still gonna throw up what I eat, too. Paris will be so jealous!
by katyb April 30, 2007

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