« Reply #2 on: August 28, 2017, 11:19:52 AM »
The over reporting of PCN allergies is why my surgeon gave me an IV cephalosporin prior to surgery that resulted in anaphylaxis. He told me, "If I had really thought you were allergic to penicillin, I wouldn't have given you the cephalosporin because 10% of people with penicillin allergy will also react to cephalosporins (and 90% of people with cephalosporin allergy are allergic to penicillin). I guess you really are allergic to penicillin."
I don't seem to react more than typical to molds, though. Weird. I knew PCN was derived from mold, but I have never been told the two allergies were related. Maybe that's why I can't stand bleu and other moldy/stinky cheeses?
ETA: Here's what I found with a quick search - haven't looked for any official sources...
Does Penicillium Mold Allergy Mean You Have a Penicillin Allergy?
In short, no. While the antibiotic penicillin was originally developed from Penicillium, people with mold allergy are not at an increased risk of developing an allergy to this class of antibiotics.
Modern-day penicillin antibiotics are produced synthetically and are not contaminated with mold particles.
« Last Edit: August 28, 2017, 11:23:59 AM by rebekahc »
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TX - USA
DS - peanut, tree nut, milk, eggs, corn, soy, several meds, many environmentals. Finally back on Xolair!
DD - mystery anaphylaxis, shellfish.
DH - banana/avocado, aspirin. Asthma.
Me - peanut, tree nut, shellfish, banana/avocado/latex, some meds.