Learning Objective Pharmaceutical aerosols are pressurized dosage forms of medicaments in which solid or liquid drugs are dissolved or suspended in a propellant. Upon activating the valve, the contents are released in the form of mist, spray or stream of foam. These products are intended for topical or local application to the nose (nasal aerosols),…

Learning Objective An aerosol is a suspension of fine solid particles or liquid droplets in a gas. In everyday life, we come across aerosols in the form of clouds and air pollution such as smog and smoke. The history of aerosols dates back to 1870, when pressurized carbonated beverages were introduced in France. Later in 1927, the…