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Simultaneous improvement of physical stability, dissolution, bioavailability, and antithrombus efficacy of Aspirin and Ligustrazine through cocrystallization

  • Kairu Wang
  • , Yanshuang Hao
  • , Chenguang Wang
  • , Xinghua Zhao
  • , Xin He
  • , Changquan Calvin Sun

Research output: Contribution to journalArticlepeer-review

Abstract

A novel 1:1 cocrystal between two cardiovascular drugs, aspirin (ASA) and ligustrazine (tetramethylpyrazine, TMP) has been synthesized and characterized. The structure of this drug-drug cocrystal, ASA-TMP, was determined using single crystal X-ray crystallography. The ASA-TMP cocrystal exhibits a significantly reduced sublimation tendency than TMP. Importantly, cocrystallization simultaneously improves bioavailability of both parent drugs. This suggests the possibility of developing a more effective antithrombosis drug therapy given the synergistic pharmacological effects of the two parent drugs.

Original languageEnglish (US)
Article number121541
JournalInternational journal of pharmaceutics
Volume616
DOIs
StatePublished - Mar 25 2022

Bibliographical note

Funding Information:
This work was supported by grants from the National Natural Science Foundation of China (Nos. 32002326 and 32172898 ) and Key Research grants of Hebei ( 19227505D ), China. We thank the Minnesota Supercomputing Institute (MSI) at the University of Minnesota for providing the resources that contributed to the research results reported within this paper ( http://www.msi.umn.edu ).

Publisher Copyright:
© 2022 Elsevier B.V.

Keywords

  • Antithrombosis
  • Aspirin
  • Bioavailability
  • Cocrystal
  • Ligustrazine

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