Show simple item record

dc.creatorĐuriš, Jelena
dc.creatorMilovanović, Stoja
dc.creatorMedarević, Đorđe
dc.creatorDobričić, Vladimir
dc.creatorDapcević, Aleksandra
dc.creatorIbrić, Svetlana
dc.date.accessioned2019-09-02T12:10:36Z
dc.date.available2019-09-02T12:10:36Z
dc.date.issued2019
dc.identifier.issn0378-5173
dc.identifier.urihttp://farfar.pharmacy.bg.ac.rs/handle/123456789/3324
dc.description.abstractSolid dispersions production is one of the substantial approaches for improvement of poor drug solubility. Additionally, supercritical fluid assisted method for preparation of solid dispersions can offer many advantages in comparison to the conventional melting or solvent-evaporation methods. Miscibility analysis provides valuable guidance for selection of the most appropriate polymeric carrier for dispersion of the drug of interest. In addition to the increased drug release rate, solid dispersions should have proper mechanical attributes in order to be successfully formulated in the final solid dosage form such as tablet. Therefore, several pharmaceutical grade polymers have been selected for development of BCS Class II drug carvedilol (CARV) solid dispersions. They were compared based on behavior in supercritical CO2 and affinity towards CARV calculated from the miscibility analysis. By utilization of the supercritical CO2 assisted method, solid dispersions of CARV with the selected (co) polymers (polyvinylpyrrolidone (PVP), hydroxypropyl methylcellulose (HPMC), Soluplus (R) and Eudragit (R)) were obtained. Properties of the prepared CARV-polymer dispersions were observed by the polarizing and scanning electron microscopy and analyzed by differential scanning calorimetry and Fourier transform infrared spectroscopy. CARV was additionally characterized by X-ray powder diffraction. Furthermore, in vitro dissolution studies and dynamic compaction analysis were performed on the selected samples of solid dispersions. Among the studied polymers, PVP and HPMC have been identified as polymers with the highest affinity towards CARV, based on the calculated delta(p) values. This has been also confirmed with the highest dissolution efficiency of CARV-PVP and CARV-HPMC solid dispersions. Solid state characterization indicated that CARV was dispersed either molecularly, or in the amorphous form, depending on interactions with each polymer. Determination of CARV-PVP and CARV-HPMC mechanical properties revealed that CARV-PVP solid dispersion has superior compactibility and tabletability. Therefore, CARV-PVP solid dispersion has been highlighted as the most appropriate for the further development of tablets as the final dosage form. Presented study provides an example for efficient approach for development of poorly soluble drug solid dispersion with satisfactory tableting properties.en
dc.publisherElsevier Science BV, Amsterdam
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/34007/RS//
dc.rightsrestrictedAccess
dc.sourceInternational Journal of Pharmaceutics
dc.subjectCarvedilolen
dc.subjectSupercritical CO2en
dc.subjectSolid dispersionen
dc.subjectImproved dissolutionen
dc.subjectTabletabilityen
dc.titleSelection of the suitable polymer for supercritical fluid assisted preparation of carvedilol solid dispersionsen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractДобричић, Владимир; Дапцевић, Aлександра; Ђуриш, Јелена; Ибрић, Светлана; Миловановић, Стоја; Медаревић, Ђорђе;
dc.citation.volume554
dc.citation.spage190
dc.citation.epage200
dc.citation.other554: 190-200
dc.citation.rankM21
dc.identifier.wos000454421400019
dc.identifier.doi10.1016/j.ijpharm.2018.11.015
dc.identifier.pmid30414899
dc.identifier.scopus2-s2.0-85056454143
dc.identifier.rcubconv_4283
dc.type.versionpublishedVersion


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record