TY - CHAP M1 - Book, Section TI - Drug Allergy A1 - Wells, Barbara G. A1 - DiPiro, Joseph T. A1 - Schwinghammer, Terry L. A1 - DiPiro, Cecily V. Y1 - 2017 N1 - T2 - Pharmacotherapy Quick Guide AB - Table Graphic Jump Location|Download (.pdf)|PrintTABLE A1–1: Classification of Allergic Drug ReactionsTypeDescriptorCharacteristicsTypical OnsetDrug CausesIImmediate (IgE mediated)Allergen binds to IgE on basophils or mast cells, resulting in release of inflammatory mediatorsWithin 1 hour (may be within 1–6 hours)Penicillin anaphylaxis, angioedemaBlood productsPolypeptide hormonesVaccinesDextranIIDelayed; CytotoxicCell destruction occurs because of cell-associated antigen that initiates cytolysis by antigen-specific antibody (IgG) and complement. Most often involves blood elements.Typically >72 hours to weeksPenicillin, quinidine, quinine, heparin, thiouracils, sulfonamides, methyldopaIIIDelayed; Immune complexAntigen–antibody (IgG or IgM) complexes form and deposit on blood vessel walls and activate complement. Result is a serum sickness-like syndrome or vasculitis.>72 hours to weeksMay be caused by penicillins, sulfonamides, minocycline, hydantoinsIVDelayed; T Cell-mediatedAntigens cause activation of T lymphocytes, which release cytokines and recruit effector cells>72 hoursIVaTh1 cells and interferon-γ, monocytes and eosinophils respond to the antigen1–21 daysTuberculin reaction, contact dermatitisIVbTh2 cells, interleukin-4 and interleukin-5 respond to the antigen1–6 weeksMaculopapular rashes with eosinophiliaIVcCytotoxic T cells, perforin, granzyme B, FasL respond to the antigen4–28 daysBullous exanthems; fixed drug eruptionsIVdT cells and interleukin-8 respond to the antigen>72 hoursAcute generalized exanthematous pustulosis SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - accesspharmacy.mhmedical.com/content.aspx?aid=1144733256 ER -