In situ nasal gel drug delivery: A novel approach for brain targeting through the mucosal membrane

Abstract

Recently, sustained and controlled drug delivery has become the demand, and research has been undertaken in achieving much better drug product effectiveness, reliability and safety. The in situ polymeric system has gained much attention, to develop a controlled release system. It has been used as a vehicle for local and systemic drug delivery. Nowadays, it has created much interest, because of its characteristics of high vascularization, high permeability, rapid onset of action, low enzymatic degradation, and avoidance of hepatic first pass metabolism. The main aim of this review is to provide knowledge of different mechanisms of nasal absorption and approaches for nasal drug delivery.

Keywords::

• brain targeting
• controlled release
• in situ gel system
• mucosal site
• nasal drug delivery

Acknowledgements

The author Dr. Amit K Goyal is thankful to Department of Biotechnology (DBT), New Delhi (under IYBA scheme; BT/01/IYBA/2009 dated May 24, 2010).

Declaration of interest

The authors confirm that the content of this article has no conflicts of interest.