title: Drug Allergy.
abstract: An adverse drug reaction relates to an undesired response to administration of a drug. Type A reactions are common and are predictable to administration, dose response, or interaction with other medications. Type B reactions are uncommon with occurrences that are not predictable. Appropriate diagnosis, classification, and entry into the chart are important to avoid future problems. The diagnosis is made with careful history, physical examination, and possibly allergy testing. It is recommended that help from allergy immunology specialists should be sought where necessary and that routine prescription of Epi pen should be given to patients with multiple allergy syndromes.
authors.affiliation: Department of Family & Community Medicine, Milton S. Hershey Medical Center, Penn State College of Medicine, Hershey, PA, USA. Electronic address: awaheed1@hmc.psu.edu.
authors.forename: Abdul
authors.initials: A
authors.lastname: Waheed
authors.affiliation: Department of Family & Community Medicine, Milton S. Hershey Medical Center, Penn State College of Medicine, Hershey, PA, USA.
authors.forename: Tiffany
authors.initials: T
authors.lastname: Hill
authors.affiliation: Department of Family & Community Medicine, Milton S. Hershey Medical Center, Penn State College of Medicine, Hershey, PA, USA.
authors.forename: Nidhi
authors.initials: N
authors.lastname: Dhawan
mesh_terms: D000367:Age Factors; D015897:Comorbidity; D004342:Drug Hypersensitivity / Q000175:diagnosis* / Q000188:drug therapy / Q000276:immunology*; D006801:Humans; D007073:Immunoglobulin E / Q000276:immunology; D011320:Primary Health Care; D012307:Risk Factors; D012737:Sex Factors; D013601:T-Lymphocytes / Q000276:immunology; D013997:Time Factors
chemical_list: D007073:Immunoglobulin E
keywords: Diagnosis; Drug allergy; Drug reaction; Hypersensitivity; Presentation; Prevention; Treatment