Open AccessPOLYMERIC NANOPARTICLES FOR IMPROVED BIOAVAILABILITY OF CILNIDIPINE
Author(s) -
Rohit Kumar Mishra,
Showkat R. Mir,
Saima Amin
Publication year - 2017
Publication title -
international journal of pharmacy and pharmaceutical sciences/international journal of pharmacy and pharmaceutical sciences
Language(s) - English
Resource type - Journals
eISSN - 2656-0097
pISSN - 0975-1491
DOI - 10.22159/ijpps.2017v9i4.15786
Subject(s) - bioavailability , plga , glycolic acid , polyvinyl alcohol , pulmonary surfactant , nanoparticle , particle size , permeation , materials science , chemistry , nuclear chemistry , lactic acid , pharmacology , nanotechnology , organic chemistry , medicine , biochemistry , biology , bacteria , genetics , membrane
Objective: In the present study, we aimed to optimize, characterize and evaluate poly lactic-glycolic acid nanoparticles of cilnidipine for improved permeation across the gastrointestinal tract.Methods: Poly lactic-glycolic acid-cilnidipine (PLGA-CIL) nanoparticles were prepared by an emulsification solvent evaporation/diffusion method using polyvinyl alcohol (PVA) as a surfactant. The prepared nanoparticles were successfully characterized for particle size, shape, drug release and pharmacological effect.Results: Polymeric nanoparticles of cilnidipine at a dose of 10 mg had a small particle size of 272 nm with smooth morphology. Nearly 81% of the drug was encapsulated in the polymeric structure and showed 18.99±0.59% of release at pH 1.2 within 3h, however, at pH 6.8 the release was 80.89±1.59%. The formulation had a better antihypertensive effect on methylprednisolone-induced hypertensive rats. The relative bioavailability of the nanoparticles was found to be 2.44 and 2.94 fold higher than the tablet and drug suspension respectively.Conclusion: The results demonstrated that the novel delivery system offers an effective strategy for treatment of hypertension.