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  2. Drug allergy - Wikipedia

    en.wikipedia.org/wiki/Drug_allergy

    A drug allergy is an allergy to a drug, most commonly a medication, and is a form of adverse drug reaction. Medical attention should be sought immediately if an allergic reaction is suspected. An allergic reaction will not occur on the first exposure to a substance.

  3. Anaphylaxis - Wikipedia

    en.wikipedia.org/wiki/Anaphylaxis

    Anaphylactoid reaction, non-immune anaphylaxis, or pseudoanaphylaxis, is a type of anaphylaxis that does not involve an allergic reaction but is due to direct mast cell degranulation. [ 10 ] [ 42 ] Non-immune anaphylaxis is the current term, as of 2018, used by the World Allergy Organization [ 42 ] with some recommending that the old ...

  4. Alpha-gal syndrome - Wikipedia

    en.wikipedia.org/wiki/Alpha-gal_syndrome

    Anaphylaxis is a potential life-threatening reaction to the allergy There have been cases where gastrointestinal symptoms arise without pruritus, hives, or other skin involvement. This presentation is not typical of food allergies, which can make initial suspicion of alpha-gal syndrome less likely. [ 8 ]

  5. First nasal spray epinephrine drug for emergency allergic ...

    www.aol.com/news/first-nasal-spray-epinephrine...

    The US Food and Drug Administration approved the first nasal spray epinephrine drug for severe allergic reactions known as anaphylaxis, providing a needle-free alternative to EpiPens and similar ...

  6. Pseudoallergy - Wikipedia

    en.wikipedia.org/wiki/Pseudoallergy

    Pseudoallergy, sometimes known as nonallergic hypersensitivity, is a type of hypersensitivity reaction mostly described in the context of drug allergy.The mechanism is somewhat similar to the type 1 hypersensitivity in the Gell and Coombs classification in that the effector cell is also mast cell.

  7. Adverse drug reaction - Wikipedia

    en.wikipedia.org/wiki/Adverse_drug_reaction

    Type A: augmented pharmacological effects, which are dose-dependent and predictable [5]; Type A reactions, which constitute approximately 80% of adverse drug reactions, are usually a consequence of the drug's primary pharmacological effect (e.g., bleeding when using the anticoagulant warfarin) or a low therapeutic index of the drug (e.g., nausea from digoxin), and they are therefore predictable.

  8. Intramuscular injection - Wikipedia

    en.wikipedia.org/wiki/Intramuscular_injection

    ICD-10-PCS : 3E023: ICD-9-CM: 99.1 ... Intramuscular injection is commonly used for medication administration. Medication ... In a case of severe allergic reaction ...

  9. Injection site reaction - Wikipedia

    en.wikipedia.org/wiki/Injection_site_reaction

    For many biologics (e.g., monoclonal antibodies), injection site reactions are the most common adverse effect of the drug, and have been reported to have an incidence rate of 0.5–40%. [2] In trials of subcutaneous administration of oligonucleotides, between 22 and 100% of subjects developed reactions depending on the oligonucleotide. [6]