Salbutamol (INN) or albuterol (USAN) is a short-acting β2-adrenergic receptor agonist used for the relief of bronchospasm in conditions such as asthma and chronic obstructive pulmonary disease. It is marketed by GlaxoSmithKline as Ventolin, Aerolin or Ventorlin, depending on the market; by Cipla as Asthalin and Asthavent; by Schering-Plough as Proventil and by Teva as ProAir.