br Asthalin Inhaler is generic alternative to Proventil . Salbutamol or Albuterol is typically used to treat bronchospasm (due to either allergen asthma or exercise induced) as well as chronic obstructive pulmonary disease.br br AllDayChemist.com is a professionally managed generic drugs distributor, supplying generic drugs and formulations to patients around the world. We offer great-value generics, without ever compromising on quality.