Author(s): Ramu Samineni, Jithendra Chimakurthy, Sumalatha. K, Dharani G, Rachana J, Manasa K, Anitha P

Email(s): jithendrach@gmail.com

DOI: 10.5958/0974-360X.2019.00527.4   

Address: Ramu Samineni1, Jithendra Chimakurthy2, Sumalatha. K3, Dharani G3, Rachana J3, Manasa K3, Anitha P3
1Division of Chemistry, Department of Sciences and Humanities, Vignan’s Foundation for Science, Technology and Research, Vadlamudi, Guntur, AP-522213
2Department of Pharmaceutical Sciences, Vignan’s Foundation for Science,
Technology and Research, Vadlamudi, Guntur, AP-522213
3Department of Pharmaceutics, Sree Vidyanikethan College of Pharmacy, A. Rangampet, Tirupati, AP-517102
*Corresponding Author

Published In:   Volume - 12,      Issue - 7,     Year - 2019


ABSTRACT:
Poor aqueous solubility and low oral bioavailability of an active pharmaceutical ingredient are the major constraints during the development of new product. Various approaches have been used for enhancement of solubility of poorly aqueous soluble drugs, but success of these approaches depends on physical and chemical nature of molecules being developed. Co-crystallization of drug substances offers a great opportunity for the development of new drug products with superior physicochemical properties such as melting point, flow ability, solubility, stability, bioavailability and permeability, while preserving the pharmacological properties of the active pharmaceutical ingredient. Co-crystals are multi-component systems in which two components, an active pharmaceutical ingredient and a co-former were present in different stichiomentric ratios and bonded together with non-covalent interactions in the crystal lattice. This review article presents a systematic overview of pharmaceutical co-crystals. Differences between co-crystals with salts, solvates and hydrates are summarized along with the advantages of co-crystals with examples. The theoretical parameters underlying the selection of co-formers and screening of co-crystals have been summarized and different methods of co-crystal formation and evaluation have been explained.


Cite this article:
Ramu Samineni, Jithendra Chimakurthy, Sumalatha. K, Dharani G, Rachana J, Manasa K, Anitha P. Co-Crystals: A Review of Recent Trends in Co Crystallization of BCS Class II Drugs. Research J. Pharm. and Tech. 2019; 12(7):3117-3124. doi: 10.5958/0974-360X.2019.00527.4


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RNI: CHHENG00387/33/1/2008-TC                     
DOI: 10.5958/0974-360X 

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