ADVANCEMENTS IN DRY POWDER INHALER

  • Ganga Srinivasan VES College of Pharmacy Chembur Mumbai-74
  • Advait Shetty VES College of Pharmacy Chembur Mumbai-74

Abstract

The dry powder inhaler (DPI) has become widely known as a very attractive platform for drug delivery. DPIs are being used for the treatment of asthma and chronic obstructive pulmonary disease by many patients. There are over 20 devices presently in the DPI market. DPIs are preferred over nebulizers and pressurized metered dose inhalers. However, some of the challenges of DPI are dependence on inspiratory flow (unsuitable for young children, elderly people), systemic absorption due to deposition of drug in deep lung (unsuitable for local diseases treatment), and increase in upper airway deposition of a large fraction of coarse particles. Hence, there is a need to address these unmet issues. The interpatient variation can be minimized by developing devices independent of patient’s inspiratory flow rate or active based powder mechanism. This article reviews DPI devices currently available, advantages of newly developed devices, and formulation technologies. The platform technologies are developed to improve aerosolization and dispersion from the device and decrease the patient related factors. The DPI delivery system has been expanded to treatment of non-respiratory diseases such as migraine and diabetes. The development of innovative DPI device and formulation technologies for delivering therapeutic proteins such as insulin has been accelerated to overcome the problems associated with conventional insulin therapy.

Keywords: Dry powder inhaler, Inspiratory flow rate, Insulin, Platform technologies.

Author Biographies

Ganga Srinivasan, VES College of Pharmacy Chembur Mumbai-74
Professor and Head of the Pharmaceutics Department
Advait Shetty, VES College of Pharmacy Chembur Mumbai-74
Post Graduate Student

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How to Cite
Srinivasan, G., and A. Shetty. “ADVANCEMENTS IN DRY POWDER INHALER”. Asian Journal of Pharmaceutical and Clinical Research, Vol. 10, no. 2, Feb. 2017, pp. 8-12, doi:10.22159/ajpcr.2017.v10i2.14282.
Section
Review Article(s)