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Allergic Reactions

Allergic Reactions

Allergic Drug Reactions

Allergic Drug Reactions

Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing...

Hypersensitivities

Hypersensitivities

Hypersensitivity, also known as a hypersensitivity reaction or allergic reaction, is a condition where the body's immune system reacts abnormally to a foreign substance. Such substances, that cause hypersensitivity are referred to as an allergen, could be something typically harmless to most people, like pollen or certain foods.
Types of Hypersensitivities
Hypersensitivity reactions are categorized into four types: Type 1, Type 2, Type 3, and Type 4. Each type has a distinct mechanism...

Cross-reactivity

Cross-reactivity

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Related Experiment Video

Updated: Oct 14, 2025

Basophil Activation Test for Allergy Diagnosis

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Published on: May 31, 2021

Skin Prick Testing Predicts Peach Hypersensitivity Reactions

Jeong Hee Kim¹

¹Department of Pediatrics, Inha University Hospital, College of Medicine, Inha University, Incheon, Korea. kimjhmd@inha.ac.kr.

Allergy, Asthma & Immunology Research

|November 4, 2021

Summary

No abstract available in PubMed .

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