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- W2029176085 abstract "Rifampicin (RIF) was encapsulated into solid lipid nanoparticles (SLNs) to overcome its poor and unreliable oral bioavailability. Novel microemulsification method with high drug loading (50%) and entrapment efficiency (∼67%) was developed (Indian Patent Application 3356/DEL/2013). RIF-SLNs were characterized using TEM, AFM, DSC and XRD. Near neutral SLNs (zeta −3.5 ± 0.8), with average particle size of 130.0 ± 22.6 nm showed 70.12% release in phosphate buffer pH 6.8 in 9 days. Single oral dose (50 mg/kg) pharmacokinetic studies in Wistar rats indicated 8.14 times higher (in comparison to free RIF) plasma bioavailability with sustained levels for 5 days. Pharmacodynamic parameters viz. TMIC (120 h; time for which plasma levels were above MIC of 0.2 μg/ml), AUC0–∞/MIC (1868.9 h) and Cmax/MIC (75.6) for RIF-SLNs were greater than free RIF by 2.5, 8.2 and 6.6 times, respectively. Similar LD50 (1570 mg/kg) and absence (or reversal in satellite group) of adverse events in repeat dose (three doses; highest dose was up to 50 times the human therapeutic dose) toxicity studies confirmed safety of RIF-SLNs. Improved pharmacokinetic profile of RIF-SLNs can be translated to a reduced dose and dosage frequency of RIF, thus resulting in lower or no hepatotoxicity commonly associated with its use." @default.
- W2029176085 created "2016-06-24" @default.
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- W2029176085 date "2015-05-01" @default.
- W2029176085 modified "2023-10-06" @default.
- W2029176085 title "Nano-formulation of rifampicin with enhanced bioavailability: Development, characterization and in-vivo safety" @default.
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- W2029176085 doi "https://doi.org/10.1016/j.ijpharm.2015.02.050" @default.
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