Same family of drugs however; Albuterol is used specifically for asthma attacks. It's a control or rescue inhaler. Clenbuterol has similar effects but last longer in your system/bloodstream, whereas Albuterol is fast acting to relieve life threatening asthma attacks by dialating your bronchial tissue/lungs. You would have to go through a few full pump cannisters of Albuterol to get the equivalent of a day or two worth of Clenbuterol. It's just not conducive to compare the two for the purposes that you are seeking.