this review places drug allergies within the context of the over-all spectra of adverse reaction to drugs , defines the spectra of allergic reactions in terms of the organ systems involved and the severity of the reactions , suggests mechanisms for diagnosing drug allergy by historical evaluation , and where possible , by skin testing procedures and provocative dose challenges , and provides a variety of methods for reintroduction of drugs to which patients have been demonstrated to be allergic .
C0020517
allergic reactions
C0013182
drug allergy