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Allergic reactions in man

C W Parker

    Pharmacological Reviews
    |March 1, 1982
    PubMed
    Summary

    Allergic drug reactions involve specific immunologic processes and can manifest in diverse ways, affecting single organs or multiple systems. Distinguishing true drug allergy from other adverse reactions is crucial for accurate diagnosis and treatment.

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    Area of Science:

    • Immunology
    • Pharmacology
    • Clinical Medicine

    Background:

    • Allergic drug reactions are immunologically mediated adverse events.
    • Distinguishing drug allergy from other adverse drug reactions (e.g., overdosage, toxicity) is essential.
    • Clinical presentations of drug allergy are highly variable, ranging from classical allergic symptoms to organ-specific damage.

    Purpose of the Study:

    • To review the general features of allergic drug reactions in humans.
    • To differentiate allergic drug reactions from other adverse drug effects.
    • To discuss the diverse clinical manifestations and potential mechanisms of drug allergy.

    Main Methods:

    • Literature review of allergic drug reactions.
    • Analysis of distinguishing features between allergic and non-allergic adverse drug reactions.
    • Discussion of clinical manifestations and underlying mechanisms.

    Main Results:

    • Allergic drug reactions result from specific immunologic processes.
    • Manifestations include classical allergy symptoms and organ-specific conditions like hemolytic anemia or hepatitis.
    • Mechanisms can involve non-immunological release of mediators or drug-induced autoantibody formation.

    Conclusions:

    • Allergic drug reactions present a wide spectrum of clinical features.
    • Understanding the immunologic basis is key to differentiating them from other adverse drug effects.
    • Further research is needed to clarify the mechanisms of some drug-induced immune responses.

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