Discovery, Characterization, and Pharmaceutical Applications of Two Loratadine–Oxalic Acid Cocrystals

Loratadine (Lor) is an antihistamine drug commonly used to relieve the symptoms of allergy. It has high permeability but low solubility under physiological conditions. To overcome the problem of low solubility, we synthesized and characterized two Loratadine multi-component crystalline phases with o...

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Main Authors: Zhengxuan Liang, Hongbo Chen, Chenguang Wang, Changquan Calvin Sun
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/10/11/996
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author Zhengxuan Liang
Hongbo Chen
Chenguang Wang
Changquan Calvin Sun
author_facet Zhengxuan Liang
Hongbo Chen
Chenguang Wang
Changquan Calvin Sun
author_sort Zhengxuan Liang
collection DOAJ
description Loratadine (Lor) is an antihistamine drug commonly used to relieve the symptoms of allergy. It has high permeability but low solubility under physiological conditions. To overcome the problem of low solubility, we synthesized and characterized two Loratadine multi-component crystalline phases with oxalic acid (Oxa), i.e., a 1:1 Lor-Oxa conjugate acid-base (CAB) cocrystal (Lor-Oxa CAB) and a 2:1 Lor-Oxa cocrystal monohydrate (Lor-Oxa hydrate). Both cocrystals exhibited an enhanced solubility and intrinsic dissolution rate (IDR) compared to Lor and adequate physical stability. The intrinsic dissolution rate of Lor-Oxa CAB is 95 times that of Lor, which makes it a promising candidate for tablet formulation development.
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spelling doaj.art-c422a6b89b4d4aeb9a752d1420b819862023-11-20T19:38:27ZengMDPI AGCrystals2073-43522020-11-01101199610.3390/cryst10110996Discovery, Characterization, and Pharmaceutical Applications of Two Loratadine–Oxalic Acid CocrystalsZhengxuan Liang0Hongbo Chen1Chenguang Wang2Changquan Calvin Sun3Pharmaceutical Materials Science and Engineering Laboratory, Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USAPharmaceutical Materials Science and Engineering Laboratory, Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USAPharmaceutical Materials Science and Engineering Laboratory, Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USAPharmaceutical Materials Science and Engineering Laboratory, Department of Pharmaceutics, College of Pharmacy, University of Minnesota, Minneapolis, MN 55455, USALoratadine (Lor) is an antihistamine drug commonly used to relieve the symptoms of allergy. It has high permeability but low solubility under physiological conditions. To overcome the problem of low solubility, we synthesized and characterized two Loratadine multi-component crystalline phases with oxalic acid (Oxa), i.e., a 1:1 Lor-Oxa conjugate acid-base (CAB) cocrystal (Lor-Oxa CAB) and a 2:1 Lor-Oxa cocrystal monohydrate (Lor-Oxa hydrate). Both cocrystals exhibited an enhanced solubility and intrinsic dissolution rate (IDR) compared to Lor and adequate physical stability. The intrinsic dissolution rate of Lor-Oxa CAB is 95 times that of Lor, which makes it a promising candidate for tablet formulation development.https://www.mdpi.com/2073-4352/10/11/996cocrystalLoratadinesolubilityintrinsic dissolution ratecompression
spellingShingle Zhengxuan Liang
Hongbo Chen
Chenguang Wang
Changquan Calvin Sun
Discovery, Characterization, and Pharmaceutical Applications of Two Loratadine–Oxalic Acid Cocrystals
Crystals
cocrystal
Loratadine
solubility
intrinsic dissolution rate
compression
title Discovery, Characterization, and Pharmaceutical Applications of Two Loratadine–Oxalic Acid Cocrystals
title_full Discovery, Characterization, and Pharmaceutical Applications of Two Loratadine–Oxalic Acid Cocrystals
title_fullStr Discovery, Characterization, and Pharmaceutical Applications of Two Loratadine–Oxalic Acid Cocrystals
title_full_unstemmed Discovery, Characterization, and Pharmaceutical Applications of Two Loratadine–Oxalic Acid Cocrystals
title_short Discovery, Characterization, and Pharmaceutical Applications of Two Loratadine–Oxalic Acid Cocrystals
title_sort discovery characterization and pharmaceutical applications of two loratadine oxalic acid cocrystals
topic cocrystal
Loratadine
solubility
intrinsic dissolution rate
compression
url https://www.mdpi.com/2073-4352/10/11/996
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AT chenguangwang discoverycharacterizationandpharmaceuticalapplicationsoftwoloratadineoxalicacidcocrystals
AT changquancalvinsun discoverycharacterizationandpharmaceuticalapplicationsoftwoloratadineoxalicacidcocrystals