PREPARATION AND IN-VITRO CHARACTERIZATION OF SOLID DISPERSION TABLETS OF CILOSTAZOL TO IMPROVE RELEASE APPROACHES BY FLOATING SYSTEMS Authors: Anjana M N , KUMAR M AND MATHEWS SM
ABSTRACT
The research focused on improving the floating capabilities of Cilostazol, a drug used for its
antiplatelet and vasodilatory effects, through the preparation of solid dispersion (SD) tablets
using three different approaches: effervescent, sublimation, and effervescent with swelling
system control release. First prepared SDs of Cilostazol using hydroxypropyl methylcellulose
(HPMC) as a carrier in various ratios. These SDs were then characterized in vitro to assess
their solubility, drug content percentage, and dissolution studies. It was observed that the
dissolution rate significantly increased with the use of entirely SDs, indicating the effectiveness
of this approach. Tablets were formulated using the optimized SD products, and various
parameters were evaluated to determine the quality of the formulations. Among all the tablet
formulations, the F4 formulation exhibited the best results in terms of pre-compression and
post-compression parameters. It possessed the desired qualities of a good swellable and floating
gastroretentive tablet, which led to its selection as the best formulation. The release data
obtained from the in vitro studies were fitted into several kinetic models to elucidate the releasemechanism. The F4 formulation demonstrated zero-order release, indicating a consistent and
controlled drug release profile. From the findings, it can be concluded that the use of swellable
and floating gastroretentive tablets containing SDs of Cilostazol can effectively achieve the
desired therapeutic objective. By improving the drug's dissolution rate and controlling its
release, these formulations offer potential benefits for enhancing the drug's efficacy and
therapeutic outcomes.
Keywords: Solid dispersion, Sublimation, Effervescent, Swelling, Floating Capability, Tablet Publication date: 01/06/2026 https://www.ijbpas.com/pdf/2026/June/MS_IJBPAS_2026_10212.pdfDownload PDFhttps://doi.org/10.31032/IJBPAS/2026/15.6.10212