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Published on: February 23, 2024
Ursodeoxycholic acid markedly promotes the absorption of microemulsion-formulated cyclosporine A: A case report
Hidemi Takeshima1, Naoki Yoshikawa1, Keiichi Akizuki2
1Department of Pharmacy, University of Miyazaki Hospital, Miyazaki, Japan.
What Is Known And Objective:
Cyclosporine A (CyA) causes intrahepatic biliary stasis via inhibition of bile acid excretion through the bile salt export pump. We report a case of a patient in whom ursodeoxycholic acid (UDCA) markedly promoted the absorption of microemulsion-formulated CyA.
Case Summary:
The patient was a 22-year-old Japanese man diagnosed with stage 3 aplastic anaemia. He was treated with CyA, and 2 h post-dose (C2) was increased by UDCA.
What Is New And Conclusion:
A remarkable interaction was observed between CyA and UDCA. This is a valuable finding for improving the treatment strategies for haematological disorders.
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