Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/1/2025

Safety of Oxi-nase Spray in G6PD Deficiency and Mild Thalassemia

Patient Risk Profile

  • The severity of hemolytic risk varies by genetic variant, with Mediterranean variants (Gdmed) causing more severe reactions than African variants (GdA-) 1, 2
  • Topical nasal medications with minimal systemic absorption pose negligible risk even in G6PD-deficient patients 3

Monitoring and Precautions

  • Watch for signs of hemolysis: jaundice, dark urine, fatigue, and pallor, especially when starting any new medication 1, 2, 4
  • For patients with Mediterranean or Southeast Asian descent, screening for G6PD deficiency severity is recommended before using any potentially oxidative medications 1, 2

REFERENCES

1

Cefuroxime Safety in G6PD Deficiency Patients [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

2

Miralax Safety in G6PD Deficiency [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025

4

Medication Safety in G6PD Deficiency [LINK]

Praxis Medical Insights: Practical Summaries of Clinical Guidelines, 2025