Solubility enhancement of carvedilol using drug–drug cocrystallization with hydrochlorothiazide

Abstract Background Increasing hydrophilicity of poorly water-soluble drugs is a major challenge in drug discovery and development. Cocrystallization is one of the techniques to enhance the hydrophilicity of such drugs. Carvedilol (CAR), a nonselective beta/alpha1 blocker, used in the treatment of m...

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Main Authors: Shivarani Eesam, Jaswanth S. Bhandaru, Chandana Naliganti, Ravi Kumar Bobbala, Raghuram Rao Akkinepally
Format: Article
Language:English
Published: SpringerOpen 2020-11-01
Series:Future Journal of Pharmaceutical Sciences
Subjects:
Online Access:http://link.springer.com/article/10.1186/s43094-020-00083-5
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author Shivarani Eesam
Jaswanth S. Bhandaru
Chandana Naliganti
Ravi Kumar Bobbala
Raghuram Rao Akkinepally
author_facet Shivarani Eesam
Jaswanth S. Bhandaru
Chandana Naliganti
Ravi Kumar Bobbala
Raghuram Rao Akkinepally
author_sort Shivarani Eesam
collection DOAJ
description Abstract Background Increasing hydrophilicity of poorly water-soluble drugs is a major challenge in drug discovery and development. Cocrystallization is one of the techniques to enhance the hydrophilicity of such drugs. Carvedilol (CAR), a nonselective beta/alpha1 blocker, used in the treatment of mild to moderate congestive heart failure and hypertension, is classified under BCS class II with poor aqueous solubility and high permeability. Present work is an attempt to improve the solubility of CAR by preparing cocrystals using hydrochlorothiazide (HCT), a diuretic drug, as coformer. CAR-HCT (2:0.5) cocrystals were prepared by slurry conversion method and were characterized by DSC, PXRD, FTIR, Raman, and SEM analysis. The solubility, stability, and dissolution (in vitro) studies were conducted for the cocrystals. Results The formation of CAR-HCT cocrystals was confirmed based on melting point, DSC thermograms, PXRD data, FTIR and Raman spectra, and finally by SEM micrographs. The solubility of the prepared cocrystals was significantly enhanced (7.3 times), and the dissolution (in vitro) was improved by 2.7 times as compared to pure drug CAR. Further, these cocrystals were also found to be stable for 3 months (90 days). Conclusion It may be inferred that the drug–drug (CAR-HCT) cocrystallization enhances the solubility and dissolution rate of carvedilol significantly. Further, by combining HCT as coformer could well be beneficial pharmacologically too.
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spelling doaj.art-02c49e8100d14cdfaf96133cd51e4e512022-12-21T19:21:24ZengSpringerOpenFuture Journal of Pharmaceutical Sciences2314-72532020-11-016111310.1186/s43094-020-00083-5Solubility enhancement of carvedilol using drug–drug cocrystallization with hydrochlorothiazideShivarani Eesam0Jaswanth S. Bhandaru1Chandana Naliganti2Ravi Kumar Bobbala3Raghuram Rao Akkinepally4Department of Medicinal Chemistry, University College of Pharmaceutical Sciences, Kakatiya UniversityNeuland Laboratories LimitedDepartment of Medicinal Chemistry, University College of Pharmaceutical Sciences, Kakatiya UniversityDepartment of Medicinal Chemistry, University College of Pharmaceutical Sciences, Kakatiya UniversityDepartment of Medicinal Chemistry, University College of Pharmaceutical Sciences, Kakatiya UniversityAbstract Background Increasing hydrophilicity of poorly water-soluble drugs is a major challenge in drug discovery and development. Cocrystallization is one of the techniques to enhance the hydrophilicity of such drugs. Carvedilol (CAR), a nonselective beta/alpha1 blocker, used in the treatment of mild to moderate congestive heart failure and hypertension, is classified under BCS class II with poor aqueous solubility and high permeability. Present work is an attempt to improve the solubility of CAR by preparing cocrystals using hydrochlorothiazide (HCT), a diuretic drug, as coformer. CAR-HCT (2:0.5) cocrystals were prepared by slurry conversion method and were characterized by DSC, PXRD, FTIR, Raman, and SEM analysis. The solubility, stability, and dissolution (in vitro) studies were conducted for the cocrystals. Results The formation of CAR-HCT cocrystals was confirmed based on melting point, DSC thermograms, PXRD data, FTIR and Raman spectra, and finally by SEM micrographs. The solubility of the prepared cocrystals was significantly enhanced (7.3 times), and the dissolution (in vitro) was improved by 2.7 times as compared to pure drug CAR. Further, these cocrystals were also found to be stable for 3 months (90 days). Conclusion It may be inferred that the drug–drug (CAR-HCT) cocrystallization enhances the solubility and dissolution rate of carvedilol significantly. Further, by combining HCT as coformer could well be beneficial pharmacologically too.http://link.springer.com/article/10.1186/s43094-020-00083-5CarvedilolHydrochlorothiazideSolubilityDissolution rateCocrystallization
spellingShingle Shivarani Eesam
Jaswanth S. Bhandaru
Chandana Naliganti
Ravi Kumar Bobbala
Raghuram Rao Akkinepally
Solubility enhancement of carvedilol using drug–drug cocrystallization with hydrochlorothiazide
Future Journal of Pharmaceutical Sciences
Carvedilol
Hydrochlorothiazide
Solubility
Dissolution rate
Cocrystallization
title Solubility enhancement of carvedilol using drug–drug cocrystallization with hydrochlorothiazide
title_full Solubility enhancement of carvedilol using drug–drug cocrystallization with hydrochlorothiazide
title_fullStr Solubility enhancement of carvedilol using drug–drug cocrystallization with hydrochlorothiazide
title_full_unstemmed Solubility enhancement of carvedilol using drug–drug cocrystallization with hydrochlorothiazide
title_short Solubility enhancement of carvedilol using drug–drug cocrystallization with hydrochlorothiazide
title_sort solubility enhancement of carvedilol using drug drug cocrystallization with hydrochlorothiazide
topic Carvedilol
Hydrochlorothiazide
Solubility
Dissolution rate
Cocrystallization
url http://link.springer.com/article/10.1186/s43094-020-00083-5
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AT ravikumarbobbala solubilityenhancementofcarvedilolusingdrugdrugcocrystallizationwithhydrochlorothiazide
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