1. resembling or producing symptoms similar to anaphylaxis, but not involving an immune-mediated allergic reaction
Usage: medical/clinical term; used to describe reactions that mimic anaphylaxis without true IgE-mediated mechanisms

Examples

• The patient experienced an anaphylactoid reaction to the contrast dye during the imaging procedure.
• Anaphylactoid reactions can occur without prior sensitization to the triggering agent.
• Certain medications are known to cause anaphylactoid responses in susceptible individuals.
• The symptoms of an anaphylactoid reaction are clinically indistinguishable from true anaphylaxis.
• Doctors must treat anaphylactoid reactions with the same urgency as allergic anaphylaxis.