Abstract
Successful pharmaceutical development of a drug molecule depends not only on its potency and selectivity but also on its solid state. Thus the properties of active pharmaceutical ingrdient depend on the identity of its constituents as well as on their arrangement. It is quite common for a drug molecule to exist in more than one crystalline arrangement leading to polymorphism. The various polymorphs differ from each other in dissolution rate, bioavailability, oral absorption, toxicology and clinical trial results. Ultimately both safety and efficacy are impacted by properties that vary among different solid forms. In the recent years screening of polymorphs is increasingly emphasised in the pharmaceutical industry not only because of the valuable knowledge obtained provides necessary guidance for further development but also because of the issue of intellectual property rights. Cocrystallization is an emerging area of research and provides a unique opportunity to enhance marketed products or to pursue compounds that had otherwise been deemed non developable. This review discusses that how common polymorphism among anti- retroviral and its effect on their efficacy. Prevalence of cocrystallization in improving the bioavailability and efficacy of these pharmaceutically important drugs is also incorporated.
Keywords: Cocrystals, polymorphs, supramolecular chemistry, single crystal XRD DSC, anti-retrovirals.
Current Topics in Medicinal Chemistry
Title:Retrospection on Polymorphism and Cocrystallization of Anti-Retrovirals
Volume: 13 Issue: 16
Author(s): Renu Chadha, Madhu Bala, Dimpy Rani and Poonam Arora
Affiliation:
Keywords: Cocrystals, polymorphs, supramolecular chemistry, single crystal XRD DSC, anti-retrovirals.
Abstract: Successful pharmaceutical development of a drug molecule depends not only on its potency and selectivity but also on its solid state. Thus the properties of active pharmaceutical ingrdient depend on the identity of its constituents as well as on their arrangement. It is quite common for a drug molecule to exist in more than one crystalline arrangement leading to polymorphism. The various polymorphs differ from each other in dissolution rate, bioavailability, oral absorption, toxicology and clinical trial results. Ultimately both safety and efficacy are impacted by properties that vary among different solid forms. In the recent years screening of polymorphs is increasingly emphasised in the pharmaceutical industry not only because of the valuable knowledge obtained provides necessary guidance for further development but also because of the issue of intellectual property rights. Cocrystallization is an emerging area of research and provides a unique opportunity to enhance marketed products or to pursue compounds that had otherwise been deemed non developable. This review discusses that how common polymorphism among anti- retroviral and its effect on their efficacy. Prevalence of cocrystallization in improving the bioavailability and efficacy of these pharmaceutically important drugs is also incorporated.
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Cite this article as:
Chadha Renu, Bala Madhu, Rani Dimpy and Arora Poonam, Retrospection on Polymorphism and Cocrystallization of Anti-Retrovirals, Current Topics in Medicinal Chemistry 2013; 13 (16) . https://dx.doi.org/10.2174/15680266113139990129
DOI https://dx.doi.org/10.2174/15680266113139990129 |
Print ISSN 1568-0266 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4294 |
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