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Table 1 Causes of anaphylaxis

From: Anaphylaxis

Common
• Foods: most commonly peanuts, tree nuts, egg, fish, shellfish, cow’s milk, and wheat
• Medications: most commonly antibiotics and NSAID
• Allergen immunotherapy
• Insect stings (bees and wasps)
• Unidentified (no cause found; idiopathic anaphylaxis)
Less common
• Exercise
• Natural rubber latex
• Semen
• Hormonal changes: menstrual factors
• Topical medications (e.g., chlorhexidine, polysporin)
• Transfusions