People with extreme, life-threatening allergic reactions might do as well to use a nasal spray as to jab themselves in a thigh with an EpiPen, a new evidence review says.
Nov 6, 2025
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Instead of stabbing yourself, or someone else, in the thigh with a needle to deliver a dose of adrenaline to counter anaphylactic shock, would it not be easier to use a nasal spray instead?
Sep 29, 2025
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A new mRNA vaccine stopped allergens from causing dangerous immune reactions and life-threatening inflammation in mice, according to researchers from the Perelman School of Medicine at the University of Pennsylvania and Cincinnati ...
Sep 29, 2025
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A study led by the Universitat Autònoma de Barcelona (UAB) shows that bee venom apitoxin alters the functioning of blood vessels, even at low concentrations. Researchers also identified an important molecular pathway of ...
Jul 16, 2025
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A rare red meat allergy, usually linked to a bite from the lone star tick, may also be caused by other tick species found in different parts of the U.S., a new report shows.
Mar 24, 2025
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If you or someone you know experiences allergies, you've probably heard of the life-threatening reaction called anaphylactic shock.
May 10, 2023
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A key feature of the severe allergic reaction known as anaphylaxis is an abrupt drop in blood pressure and body temperature, causing people to faint and, if untreated, potentially die.
Mar 17, 2023
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Don't believe everything you hear: A sizable minority of Americans are still hesitant about getting the new COVID-19 vaccine, but their fears are mostly not warranted, a leading vaccine expert says.
Mar 18, 2021
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Worried or wondering about COVID-19 vaccines?
Feb 22, 2021
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Anaphylaxis is a systemic allergic reaction that can affect the skin, the gastrointestinal tract, the respiratory system and the cardiovascular system. The most severe form of anaphylaxis is anaphylactic shock, which features ...
Feb 9, 2021
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Anaphylaxis is defined as "a serious allergic reaction that is rapid in onset and may cause death". It typically results in a number of symptoms including an itchy rash, throat swelling, and low blood pressure. Common causes include insect bites, foods, and medications.
On a pathophysiologic level, anaphylaxis is due to the release of mediators from certain types of white blood cells triggered either by immunologic or non-immunologic mechanisms. It is diagnosed based on the presenting symptoms and signs. The primary treatment is injection of epinephrine, with other measures being complementary.
Worldwide 0.05–2% of people are estimated to have anaphylaxis at some point in their life and rates appear to be increasing. The term comes from the Greek words ἀνά ana, against, and φύλαξις phylaxis, protection.
This text uses material from Wikipedia licensed under CC BY-SA
