A Short Review on Nasal Drug Delivery System

Nasal drug delivery has received a great deal of attention as convenient, reliable and promising methods for the systemic administration of drug. It is especially for those molecules which are ineffective oraly and only effective if administration by injection. The nasal route of drug delivery has advantage over the other alternative system of drug administration. The present review is an attempt to provide some information concerning nasal drug delivery system such as limitation, advantage, mechanism drug absorption, anatomy and Physiology Nasal, factor affecting of nasal drug delivery, drug distribution and deposition, Challenges and oppurtunities for Nasal Delivery Systems1. These drug delivery system have the ability to control the rate of drug clearance from the nasal cavity as well as protect the drug from enzymatic degradation in nasal secretions2..