Got Gear is mostly right. Clen is not a steroid. In fact, the only medical use for which clenbuterol is generally prescribed (and now being less and less prescribed thanks to its illegitimate use) is for obstructions of the air-way. People with chronic breathing disorders like asthma use this as a bronchodilator to make breathing easier. Clen was never studied closely on humans for building muscles.

People should be aware of is the inherent liver toxicity associated with clenbuterol use. When stacking with oral 17-alpha-alkylated steroids, accutane, anti-biotics or other hepatoxic elements, one should have his liver values checked by a licensed physician at regular points in time to avoid all problems. If you not a yellow discoloration of the skin cease use immediately and contact your doctor.

OG