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Hansen solubility parameter as a tool to predict cocrystal formation
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- Mohammad, Mohammad Amin (author)
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Damascus University
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- Alhalaweh, Amjad (author)
- Luleå tekniska universitet,Medicinsk vetenskap
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- Velaga, Sitaram (author)
- Luleå tekniska universitet,Medicinsk vetenskap
- (creator_code:org_t)
- Elsevier BV, 2011
- 2011
- English.
- In: International Journal of Pharmaceutics. - : Elsevier BV. - 0378-5173 .- 1873-3476. ; 407:1-2, s. 63-71
- Journal article (peer-reviewed)
Abstract
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- The objective of this study was to investigate whether the miscibility of a drug and coformer, as predicted by Hansen Solubility Parameters (HSPs), can indicate cocrystal formation and guide cocrystal screening. It was also our aim to evaluate various HSPs-based approaches in miscibility prediction. HSPs for indomethacin (the model drug) and over thirty coformers were calculated according to the group contribution method. Differences in the HSPs between indomethacin and each coformer were then calculated using three established approaches, and the miscibility was predicted. Subsequently, differential scanning calorimetry was used to investigate the experimental miscibility and cocrystal formation. The formation of cocrystals was also verified using liquid-assisted grinding. All except one of the drug-coformers that were predicted to be miscible were confirmed experimentally as miscible. All tested theoretical approaches were in agreement in predicting miscibility. All systems that formed cocrystals were miscible. Remarkably, two new cocrystals of indomethacin were discovered in this study. Though it may be necessary to test this approach in a wide range of different coformer and drug compound types for accurate generalizations, the trends with tested systems were clear and suggest that the drug and coformer should miscible for cocrystal formation. Thus, predicting the miscibility of cocrystal components using solubility parameters can guide the selection of potential coformers prior to exhaustive cocrystal screening work.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskap -- Annan hälsovetenskap (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Other Health Sciences (hsv//eng)
Keyword
- Health Science
- Hälsovetenskap
Publication and Content Type
- ref (subject category)
- art (subject category)
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