Should testing be initiated prior to amoxicillin challenge in children?

Elissa M Abrams1, Moshe Ben-Shoshan2

  • 1Section of Allergy and Clinical Immunology, Department of Pediatrics, University of Manitoba, Winnipeg, Manitoba, Canada.

Insights

Most children labeled as amoxicillin allergic can tolerate the antibiotic after evaluation. Allergy testing, including skin and provocation tests, helps confirm true amoxicillin allergy in children, avoiding adverse outcomes.

Area of Science:

  • Pediatric Allergy and Immunology
  • Clinical Pharmacology
  • Infectious Diseases

Background:

  • Amoxicillin is a widely prescribed antibiotic in pediatric populations.
  • A significant percentage of children are labeled with amoxicillin allergy, often inaccurately.
  • Amoxicillin allergy labels are linked to negative health consequences, including antibiotic resistance.

Purpose of the Study:

  • To review the strengths and limitations of current amoxicillin allergy assessment methods in children.
  • To evaluate the role of skin testing versus drug provocation testing in pediatric amoxicillin allergy evaluations.
  • To discuss the management of children with a history of immediate or non-immediate reactions to amoxicillin.

Main Methods:

  • Narrative review of existing literature on amoxicillin allergy testing in children.
  • Analysis of evidence supporting skin testing prior to drug provocation testing.
  • Examination of data suggesting drug provocation testing may suffice for lower-risk children.

Main Results:

  • The majority of children with a history of amoxicillin reaction tolerate the drug upon formal evaluation.
  • Skin testing followed by drug provocation is a common diagnostic approach.
  • Evidence is emerging for the safety and efficacy of drug provocation testing alone in select pediatric cases.

Conclusions:

  • Accurate amoxicillin allergy evaluation is crucial to de-label children and prevent adverse health outcomes.
  • The optimal diagnostic pathway, balancing skin testing and drug provocation, requires careful consideration.
  • Further research may refine guidelines for assessing amoxicillin allergy in children, particularly for those at lower risk.

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