AHR
Also written as: AHR — Adverse Hypersensitivity Reaction
Adverse Hypersensitivity Reaction; a documented allergic or immune-mediated response to a cosmetic dermatology product or procedure, recorded in post-market surveillance and clinical reporting.
Full Definition
In cosmetic dermatology documentation, AHR is used as a shorthand in adverse event tracking, clinical trial reports, and pharmacovigilance submissions to describe reactions that go beyond expected irritation and involve immune system mediation, such as angioedema, urticaria, or delayed hypersensitivity. Editors must confirm that the acronym is defined on first use in any document, as 'AHR' can also refer to 'aryl hydrocarbon receptor' in basic science literature. The distinction between an AHR and a standard adverse event (AE) or serious adverse event (SAE) is clinically and regulatorily significant and must be preserved in editorial review. The term is always capitalised when used as an acronym.
Usage
Usage note: Define on first use in every document; verify the intended expansion as 'AHR' is polysemous across medical sciences.