The prolonged residence of drug formulation in the nasal cavity is of utmost importance for intranasal drug delivery.
The objective of the present investigation was to develop a mucoadhesive in situ gel with reduced nasal mucocilliary
clearance in order to improve the bioavailability of the antiemetic drug, Metaclopramide. The in situ gelation upon contact
with nasal mucosa was conferred via the use of the thermogelling Methyl cellulose whereas mucoadhesion and drug release
enhancement were modulated via the use of sodium alginate and polyethylene glycol polymers respectively. The results revealed
that the mucoadhesive polymer increased the gel viscosity but reduced its sol gel transition temperatures and the drug release.
The inclusion of polyethylene glycol polymer counteracted the effect of mucoadhesive polymer where by it decreased the gel
consistency and increased the sol gel transition as well as in vitro drug diffusion. The in vitro tests performed for mucoadhesive
strength and drug diffusion showed that nasal in situ gelling formulations prepared are having good mucoadhesive strength with
nearly 100% drug diffusion within 4 hours. So this study points to the potential of mucoadhesive nasal gel in terms of ease of
administration, accuracy of dosing, prolonged nasal residence and improved nasal bioavailability.
Paresh Mohan completed B. Pharma in 2011 from Kota College of Pharmacy, Kota (RAJ.). Presently he is an M. Pharma. (Pharmaceutics) Student
in Kota College of Pharmacy, Kota (Rajasthan). Paresh is having 3 International review articles and He is attended 1 National conferences in Solan
(H.P.). His Research Guide is Dr. M.P. Khinchi is having 15 International Research Articles, 20 International Review Articles and he is Attended 12
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