Background and Objective: Intranasal drug delivery, being non-invasive in nature has turned out to be a promising option for drug administration. It is particularly valuable for drugs having low oral bioavailability due to degradation in Gastrointestinal Tract (GIT).
Discussion: Nasal route provides a unique micro-environment due to absence of deactivating enzymes and abundant vascular tissues which bring about direct systemic display, along with these lines abstaining the first pass hepatic metabolism.
Conclusion: The present article provides in-depth information about the physicochemical parameters associated with drug absorption in nasal mucosa and factors influencing it. The pathways and mechanisms associated with nasal drug uptake alongside current pharmaceutical applications are additionally summarized.