Chinese Journal of Pharmacovigilance ›› 2021, Vol. 18 ›› Issue (12): 1192-1195.
DOI: 10.19803/j.1672-8629.2021.12.21

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One Case of Hyperkalemia Induced by Concomitant Use of Cyclosporine and Other Drugs

YANG Xiaowen1,2, WANG Xiaoxing1,*   

  1. 1Department of Pharmacy, China-Japan Friendship Hospital, Beijing 100029, China;
    2Department of Pharmacy, the Affiliated Hospital of Inner Mongolia Medical University, Hohhot Inner Mongolia 010050, China
  • Received:2020-02-24 Online:2021-12-15 Published:2021-12-16

Abstract: Objective To explore the mechanism and clinical features of hyperkalemia induced by concomitant use of cyclosporine and other drugs.Methods The diagnosis and treatment of a patient with hyperkalemia caused by concomitant use of cyclosporine, voriconazole and sacurbatrovalsartan were analyzed. Based on literature review, the possible mechanism by which concomitant use of these drugs led to hyperkalemia was studied. Results After five days of combined administration of these drugs, the serum level of potassium began to exceed the upper limit. After withdrawal of cyclosporine and sulbactam, the serum level of potassium did not return to normal within five days until voriconazole was discontinued. There was no abnormal level of serum potassium when voriconazole was administered a second time. All this suggested that the combination of cyclosporine, voriconazole and sacurbatrovalsartan increased the risk of cyclosporine induced hyperkalemia.Conclusion When cyclosporine, voriconazole, and drugs acting on the renin-angiotensin-aldosterone system are administered in combination, hyperkalemia is likely to occur even if the blood concentration of cyclosporine is at a relatively low level.

Key words: cyclosporine, voriconazole, systemic lupus erythematosus, hyperkalemia, drug interaction

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