FORMULATION AND EVALUATION OF TERNARY SYSTEM FOR SOLUBILITY ENHANCEMENT OF A SECOND GENERATION COX-II INHIBITIOR Authors: S.Srinivasan* And R.Dhivya
ABSTRACT
Etoricoxib is a highly selective COX-II inhibitor, used to treat pains of different
etiologies. Etoricoxib has low aqueous solubility (201µg/ml) and high permeability and
therefore classified as BCS class II drug. By formulating these drugs with cyclodextrins as
inclusion complexes have shown to increase the bioavailability. Cyclodextrins when used as
Complexing agents, enhance the solubility of poor water soluble lipophilic drugs. The objective
of the present work is to formulate Etoricoxib cyclodextrin complexes by using ternary systems
as Citric acid, Tartaric acid and PVP K-30 in order to enhance solubility and evaluate the
enhanced solubility by in-vitro dissolution. The formulated complexes were evaluated for drug
release by in-vitro dissolution. The prepared complexes were confirmed and characterized by
FT-IR, DSC, SEM and XRD. Complexation with cyclodextrins is an effective method in order to
improve the aqueous solubility of Etoricoxib. The release of Etoricoxib from complexes
prepared with Hydroxy propyl ? cyclodextrin and citric acid (1:1:2M) by lyophilization method
shows a drug release 100.85%, significantly higher than other cyclodextrin ternary complexes.
Keywords: Etoricoxib, cyclodextrins, Kneading method, Solvent evaporationmethod Publication date: 25/09/2021 https://ijbpas.com/pdf/2021/September/MS_IJBPAS_2021_SEPT_SPCL_1042.pdfDownload PDFhttps://doi.org/10.31032/IJBPAS/2021/10.9.1042