At the end of the study, propellant loss in the Proventil HFA test MDIs increased threefold over that in the controls. The Ventolin HFA test MDIs also had an increased leak rate compared with ...
After exposure to extreme environmental temperatures, an increase in propellant-leak rate was observed with Proventil HFA and Ventolin HFA MDIs, but little to no change was found in particle size ...
MDIs can recognized by the abbreviation HFA (which stands for the propellant hydrofluoroalkane). These include Ventolin HFA, Proventil HFA, Proair HFA, Atrovent HFA, Alvesco HFA, and Asmanex HFA.
It is undisputed that the Inhaler Patents do not claim the active ingredient, albuterol sulfate, in the reference ProAir® HFA Inhalation Aerosol product. Amneal filed an Abbreviated New Drug ...