Study Evaluating the Safety and Efficacy of Neffy or Intramuscular Adrenalin in Patients With Allergic Reactions After Oral Food Challenge or Allergen Immunotherapy

Is a patient 4 years old or greater, inclusive, who are scheduled to undergo OFC, AIT, or other relevant allergy challenge.

Has body weight 15 kg or greater at the time of allergy challenge.

Is willing and able to provide written informed consent prior to participating in the study. In the case of minors (<18 years old), assent can be obtained from his/her legal representative, and as much possible from the patient himself/herself.

Patient experiences an allergic reaction that, in the opinion of the Investigator, requires treatment with epinephrine via neffy or IM Adrenalin.