The Know-how of Polymeric Nanocarrier Based Vaginal Drug Delivery System: Pitfalls, Challenges and Trends.

Polymeric nanocarrier for vaginal delivery has provided better therapeutic efficacy due to higher drug residence, improved permeation, and sustained release of the active therapeutic agent. The polymeric nanocarriers can deliver different proteins, peptides, nuclear materials, hormones, etc., vaginally that are difficult for administration.