Design and Evaluation of Self-Emulsifying Drug Delivery System (SEDDS) Of Carvedilol to Improve the Oral Absorption
| Author | Anayatollah Salimi | en |
| Author | Behzad Sharif Makhmal Zadeh | en |
| Author | Ali asghar Hemati | en |
| Author | Sanaz Akbari Birgani | en |
| Orcid | Anayatollah Salimi [0000-0003-1505-7969] | en |
| Issued Date | 2014-08-01 | en |
| Abstract | Background: Self-emulsifying drug delivery system is an isotropic mixture of natural or synthetic oils, non-ionic surfactants or, one or more hydrophilic solvent and co-solvents/surfactant and polymer that improve bioavailability and increase solubility of poorly-soluble drugs. This study aimed to formulate a self-emulsifying drug delivery system containing a lipophilic drug٫ carvedilol, and to improve the dissolution rate and following oral absorption. Objectives: This study was aimed to prepare and develop a stable formulation for self-emulsifying drug delivery system to enhance the solubility, release rate, and oral absorption of the poorly-soluble drug, carvedilol. Materials and Methods: The prepared self-emulsifying drug delivery system formulations were evaluated regarding their particle size, refractory index (RI), emulsifying efficiency, drug release, and rat intestine permeability. Results: The results showed oleic acid as oil with Labrafil as surfactant and Labrafac PG (propylene glycol dicaprylocapraye) as co-surfactant with hydroxypropyl methylcellulose and Poloxamer as polymer prepared stable emulsions with a refractive index higher than acidic medium and water. The particle size of formulations was influenced by the type of polymer so that the mean particle size in the self-emulsifying drug delivery system formulations containing hydroxypropyl methylcellulose have a higher particle size compared to Poloxamer formulations. The percentage of drug release after 24 hours (R24) for Poloxamer and hydroxypropyl methylcellulose formulations were 61.24-70.61% and to 74.26-91.11%, respectively. The correlation between percentages of drug released after 24 hours with type of polymer was significant. In permeation studies, a significant and direct correlation existed between P4 and surfactant/co-surfactant ratio. The self-emulsifying drug delivery system formulations showed drug permeability through the rat intestine 2.76 times more, compared with the control. Conclusions: This study demonstrated that physicochemical properties, in vitro release and rat intestine permeability were dependent upon the contents of S/C, water and oil percentage in formulations. | en |
| DOI | https://doi.org/10.17795/jjnpp-16125 | en |
| Keyword | Carvedilol | en |
| Keyword | Self-Emulsifying Drug Delivery Systems | en |
| Keyword | Oral Absorption | en |
| Publisher | Brieflands | en |
| Title | Design and Evaluation of Self-Emulsifying Drug Delivery System (SEDDS) Of Carvedilol to Improve the Oral Absorption | en |
| Type | Research Article | en |
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