Two cases of skin hyperpigmentation induced by polymyxin B

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Cássio Alexandre Oliveira Rodrigues
Rand Randall Martins
Eduardo Queiroz da Cunha
Marizaldo de Souto Lima
Valdjane Saldanha

Abstract

Introduction: The skin hyperpigmentation process involves biochemical and immunological mechanisms that stimulate melanogenesis and although nephrotoxicity consists of the most relevant adverse reaction of polymyxin B, it is also associated with this changes. Case report: Case 1: male patient, diagnosed with Hodgkin’s Lymphoma, who developed skin hyperpigmentation after starting treatment with meropenem, anidulafungin and polymyxin B due to a septic shock. Case 2: male patient, admitted to the ICU for decreased level of consciousness and suspected STEMI, diagnosed with endocarditis and pericarditis, who also presented skin hyperpigmentation during therapy with amphotericin B and polymyxin B. Conclusion: After careful evaluation of chronological order and drugs used by patients, we conclude that polymyxin B caused hyperpigmentation in both patients. Finally, based on the mechanism of this reaction and the scientific findings, clinical studies that may evidence a probable pharmacological effect with the use of H2 antagonists are required.

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How to Cite
Rodrigues, C. A. O., Martins, R. R., Cunha, E. Q. da, Lima, M. de S., & Saldanha, V. (2019). Two cases of skin hyperpigmentation induced by polymyxin B. ABCS Health Sciences, 44(2). https://doi.org/10.7322/abcshs.v44i2.1170
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