Abstract
Background: Lovastatin (LOV), a highly lipophilic drug associated with poor oral bioavailability, belongs to the class of cholesterol lowering drugs. With the objective to improve the solubility and to attain sustained release, solid lipid nanoparticles (SLNs) have been formulated.
Method: Lovastatin loaded solid lipid nanoparticles (LOV-SLNs) were prepared by pre-emulsion and probe sonication method. LOV-SLNs were studied by Atomic Force Microscope (AFM), Differential Scanning Calorimetry (DSC) and Reverse Phase High Performance Liquid Chromatography (RP-HPLC).
Result: The particle size and zeta potential of optimized formulation were found to be 169.4±14.1 nm and -24.1 mV, respectively.
Conclusion: The in vitro drug release studies confirmed the sustained release nature of the formulation and revealed that the drug released from the prepared LOV-SLNs is the combination of dissolution, diffusion and erosion. The data obtained from in vitro dissolution study show that LOV-SLNs is a promising colloidal system which could significantly improve the oral bioavailability of LOV by improving the solubility.
Keywords: Lovastatin (LOV), Solid lipid nanoparticles (SLNs), oral delivery, bioavailability, release kinetics, sustained release.
Graphical Abstract
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