Penicillin Allergy Awareness

National Penicillin Allergy Day falls on 28 September each year. This is the date that Alexander Fleming discovered penicillin in 1928. The annual campaign raises awareness around the impact of carrying a penicillin allergy label and how it can affect a patient’s healthcare treatment.

As healthcare professionals, it is important to know a patient’s true allergy history. This page features various resources for healthcare professional use, to support and raise awareness of penicillin allergy.

What is penicillin allergy?

Why is correct identification of those NOT allergic to penicillin important?

National Penicillin Allergy Day: 28th September

Page review date: September 2025