Polymyxin B-induced gastric spasm:a case report - Report - MDSpire

Polymyxin B-induced gastric spasm:a case report

  • By

  • Chuan Sun

  • Yao Sun

  • Dandan Yang

  • Tianjiao Hu

  • Lihua Yuan

  • June 22, 2026

  • 0 min

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Clinical Report: Gastric Spasm Associated with Polymyxin B: A Case Study

Background

Polymyxin B is increasingly used to treat infections caused by multidrug-resistant Gram-negative bacteria, particularly Acinetobacter baumannii. While effective, it is associated with various adverse drug reactions, necessitating careful monitoring.

Data Highlights

No numerical data or trial data were provided in the article.

Key Findings

  • A 14-year-old boy developed severe gastric spasm after receiving polymyxin B.
  • Symptoms included abdominal colic, nausea, and visible distress during treatment.
  • Discontinuation of polymyxin B led to significant symptom improvement.
  • This case highlights the need for awareness of rare adverse reactions associated with polymyxin B.

Clinical Implications

Healthcare providers should be vigilant for gastrointestinal adverse reactions in patients receiving polymyxin B, especially in pediatric populations. Discontinuation of the drug may be necessary if severe symptoms arise.

Conclusion

This case underscores the potential for polymyxin B to induce gastric spasm, warranting further investigation into its safety profile in clinical use.

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  7. Polymyxin B vs. colistin: the comparison of neurotoxic and nephrotoxic effects of the two polymyxins | BMC Infectious Diseases | Springer Nature Link
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  10. Polymyxin B vs. colistin: the comparison of neurotoxic and nephrotoxic effects of the two polymyxins | BMC Infectious Diseases | Springer Nature Link

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