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  2. Anti-allergic agent - Wikipedia

    en.wikipedia.org/wiki/Anti-allergic_agent

    Antihistamines, specifically H1-antihistamines, are medicines which provide relief for allergic symptoms such as runny nose, sneezing, itching, and watery eyes from seasonal allergies . They are usually the first line of medications prescribed by a general practitioner, or a pharmacist for allergies in a community pharmacy.

  3. Antihistamine - Wikipedia

    en.wikipedia.org/wiki/Antihistamine

    [4] [5] Normally, histamine binds to the H 1 receptor and heightens the receptor's activity; the receptor antagonists work by binding to the receptor and blocking the activation of the receptor by histamine; by comparison, the inverse agonists bind to the receptor and both block the binding of histamine, and reduce its constitutive activity, an ...

  4. Mast cell stabilizer - Wikipedia

    en.wikipedia.org/wiki/Mast_cell_stabilizer

    They block mast cell degranulation, stabilizing the cell and thereby preventing the release of histamine and related mediators. One suspected pharmacodynamic mechanism is the blocking of IgE-regulated calcium channels. Without intracellular calcium, the histamine vesicles cannot fuse to the cell membrane and degranulate. [1]

  5. H1 antagonist - Wikipedia

    en.wikipedia.org/wiki/H1_antagonist

    H 1 antagonists, also called H 1 blockers, are a class of medications that block the action of histamine at the H 1 receptor, helping to relieve allergic reactions.Agents where the main therapeutic effect is mediated by negative modulation of histamine receptors are termed antihistamines; other agents may have antihistaminergic action but are not true antihistamines.

  6. Allergies in children - Wikipedia

    en.wikipedia.org/wiki/Allergies_in_children

    Allergies in children, an incidence which has increased over the last fifty years, are overreactions of the immune system often caused by foreign substances or genetics that may present themselves in different ways. [1] There are multiple forms of testing, prevention, management, and treatment available if an allergy is present in a child.

  7. Clemastine - Wikipedia

    en.wikipedia.org/wiki/Clemastine

    Clemastine is a selective histamine H 1 antagonist. It binds to the histamine H 1 receptor, thus blocking the action of endogenous histamine, which leads to temporary relief of the negative symptoms caused by histamine. [11]

  8. Histamine intolerance - Wikipedia

    en.wikipedia.org/wiki/Histamine_intolerance

    Histamine intolerance is a presumed set of adverse reactions (such as flush, itching, rhinitis, etc.) to ingested histamine in food. The mainstream theory accepts that there may exist adverse reactions to ingested histamine, but does not recognize histamine intolerance as a separate medical condition that can be diagnosed. [1]

  9. Bilastine - Wikipedia

    en.wikipedia.org/wiki/Bilastine

    Bilastine is an antihistamine medication used to treat hives (), allergic rhinitis and itchy inflamed eyes (allergic conjunctivitis) caused by an allergy. [6] It is a second-generation antihistamine and takes effect by selectively inhibiting the histamine H 1 receptor, preventing these allergic reactions. [7]

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