replace cumbersome aerosol mist nebulizers.

The pulmonary route of drug delivery has been gaining much importance in the present day, as it enables targeted drug delivery directly to the lungs for both local and systemic treatment. Pulmonary drug delivery, as a noninvasive drug administration method, is characterized by its high bioavailability and fast action. It is increasingly used in modern clinical practice for improved treatment of local as well as systemic diseases.