EFFECT OF OILS, SURFACTANTS AND COSURFACTANTS ON PHASE BEHAVIOR AND PHYSICOCHEMICAL PROPERTIES OF SELF-NANOEMULSIFYING DRUG DELIVERY SYSTEM (SNEDDS) FOR IRBESARTAN AND OLMESARTAN

ALI NASR; AHMED GARDOUH; HASSAN GHONAIM; ELSAYED ABDELGHANY; MAMDOUH GHORAB

doi:10.22159/ijap.2016v8i1.10530

Authors

ALI NASR Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Industries, Sinai University, Alarish, Egypt,
AHMED GARDOUH Department of Pharmaceutics, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
HASSAN GHONAIM Department of Pharmaceutics, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
ELSAYED ABDELGHANY Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Industries, Sinai University, Alarish, Egypt,
MAMDOUH GHORAB Department of Pharmaceutics, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt

DOI:

https://doi.org/10.22159/ijap.2016v8i1.10530

Keywords:

Irbesartan, Olmesartan, Self-nanoemulsifying drug delivery system (SNEDDS), Capryol 90, Cremophor RH 40 and Transcutol HP

Abstract

Objective: The main purpose of this study was to optimize the different conditions for the preparation of self-nanoemulsifying drug delivery system (SNEDDS) for both Irbesartan (IRB) and Olmesartan (OLM).

Methods: Based on solubility study and emulsification efficiency, Preliminary investigations of various oils, surfactants and cosurfactants were carried out for selection of the proper SNEDDS ingredients. Pseudoternary phase diagrams were then plotted using series of concentrations to obtain optimum SNEDDS components that identify the efficient self-nanoemulsifying region. Sixteen unloaded SNEEDS formulae were prepared using Capryol 90, Cremophor RH 40 and Transcutol HP as oil, surfactant and cosurfactant respectively. The prepared SNEDDS were evaluated for self-nanoemulsification time, the effect of dilution (with different volumes at different pH values), optical clarity, viscosity, droplet size analysis as well as the polydispersity index (PDI). SNEDDS formulae were also evaluated for thermodynamic stability and zeta potential to confirm the stability of the prepared SNEDDS.

Results: The results showed that the mean droplet size of all reconstituted SNEDDS was found to be in the nanometric range (<100 nm) and showed optimum PDI values. All formulae also showed rapid emulsification time, good optical clarity and found to be highly stable. Formulae with the smallest particle size, lowest emulsification time, best optical clarity and robust to dilution and pH change were selected to be loaded with IRB and OLM for further study.

Conclusion: It was concluded that the prepared self-emulsified prototype was ready to incorporate many poorly soluble drugs in order to improve their solubility as well as bioavailability profile.

Keywords: Irbesartan, Olmesartan, Self-nanoemulsifying drug delivery system (SNEDDS), Capryol 90, Cremophor RH 40 and Transcutol HP.

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