Affiliation:
1. AL-TURATH UNIVERSITY COLLEGE, BAGHDAD, IRAQ
2. KNOWLEDGE UNIVERSITY ERBIL, ERBIL, IRAQ
Abstract
The aim: This work aimed to formulate gliclazide and linagliptin extended-release nanoparticles.
Materials and methods: A HPLC method was developed and validated to determine gliclazide and linagliptin at the same time without interference. The nanoparticles were prepared by emulsion solvent evaporation using two polymers, namely hydroxypropyl methylcellulose (HPMC) 4000 cps and xanthan gum.
Results: Nanoparticles prepared were characterized for drug contents, production yield and entrapment efficiency, zeta potential, particle size, morphology by transmission electronic microscopy (TEM) and in-vitro release rate. The formulae GLH1, GLX1 and GHX1 showed release of linagliptin more than 75% after 8 hrs. While the only formula among the three (GHX1) showed release of gliclazide more than 80% after 8 h. So, the formula GHX1 showed acceptable release of more than 80% of both gliclazide and linagliptin after 8 h.
Conclusions: The formula GHX1 which containing (0.5:1 xanthan gum: drugs) was the best nanoparticles formula which released more than 80% of both drugs after 8 h and could achieve good extended release over 24 h.
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