Author(s): S. Meraj Sultana, A. Seetha Devi


DOI: 10.52711/0974-360X.2024.00295   

Address: S. Meraj Sultana1*, A. Seetha Devi2
1University College of Pharmaceutical Sciences, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, Andhra Pradesh, India.
2Department of Pharmaceutics, Hindu College of Pharmacy, Amaravathi Road, Guntur, Andhra Pradesh, India.
*Corresponding Author

Published In:   Volume - 17,      Issue - 4,     Year - 2024

In the present research work, Eletriptan Hydrobromide(E-HBr)-loaded solid lipid nanoparticles (SLN’s) incorporated in a gel was prepared by emulsification solvent evaporation technique to enhance the uptake of E-HBr to brain via intra-nasal (i.n.) route and the formulations were evaluated for particle size, polydispersibility index, zeta potential, drug entrapment efficiency, in-vitro drug release, and stability of the optimized formulation. All the parameters evaluated were within the acceptable range. In-vitro drug release for the optimized gel formulation was found to be 92.45% after 12hr and was fitted to the Higuchi model with a very high correlation coefficient (R2=0.995). Pharmacokinetics studies were performed on albino male Wistar rats and the concentration of E-HBr in brain and blood plasma was measured by HPLC. The brain/blood ratio at 0.5h for E-HBr Opt.SLN’s i.n., E-HBr sol. i.n., and E-HBr sol. oral. were found to be 2.35, 1.19 and 0.80 respectively, indicating the drug transported directly from nose-to-brain, by bypassing the blood–brain barrier in the olfactory region present in the nasal cavity. The maximum concentration of drug in brain (Cmax) after i.n. administration of E-HBr-SLN gel was found to be (21465.87±1110.66ng/ml, Tmax 8.45hr) significantly higher than that achieved after oral administration (6797.23±842.86ng/ml, Tmax 7hr), and i.n. (16451.53±3792.40ng/ml, Tmax 7.69 hr) administration of E-HBr sol. The highest drug-targeting efficiency (2.35%) and direct transport percentage (66.05%) was found with E-HBr-SLN’s as compared to the other formulations. Higher DTE (%) and DTP (%) suggest, that E-HBr-SLN gel had better brain targeting efficiency as compared to other formulations.

Cite this article:
S. Meraj Sultana, A. Seetha Devi. Design Optimization and Pharmacokinetic Study of Eletriptan Hydrobromide Loaded Solid Lipid Nanoparticle Nasal Gel Targeted to Brain. Research Journal of Pharmacy and Technology.2024; 17(4):1858-6. doi: 10.52711/0974-360X.2024.00295

S. Meraj Sultana, A. Seetha Devi. Design Optimization and Pharmacokinetic Study of Eletriptan Hydrobromide Loaded Solid Lipid Nanoparticle Nasal Gel Targeted to Brain. Research Journal of Pharmacy and Technology.2024; 17(4):1858-6. doi: 10.52711/0974-360X.2024.00295   Available on:

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