Abstract
The primary objective of this study is to develop and evaluate phenylephrine nasal gels, aiming for stable blood levels with lower drug doses through consistent administration, avoiding first-pass hepatic metabolism. Compatibility among the drug, polymers, and lipids was confirmed using FTIR and DSC spectra. Phenylephrine nasal gels were formulated, and their clarity assessed. The gels (ONGF1-ONGF8) had pH values of 6.1-7.2, spreadability of 18.33-21.62 g/cm/sec, and viscosity of 934.2-966.2 centipoises. Drug concentration in these formulations varied from 85.52% to 98.88%, indicating acceptable medication content. Gel strength ranged from 64% to 95%. In-vitro drug release of phenylephrine showed 77% to 95% diffusion for ONGF1. The release kinetics followed first order, zero order, Higuchi model, and Korsemeyer-Peppas equations. Kinetic values for all formulations were tabulated. ONGF1 exhibited the most efficient release, with 95% of the drug released within 7 hours, demonstrating a diffusion mechanism followed by non-Fickian transport, adhering to both zero order and Korsemeyer-Peppas models.Top of Form
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More From: International Journal of Clinical Pharmacokinetics and Medical Sciences
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