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  2. Which Allergy Medicine Is Actually Most Effective? - AOL

    www.aol.com/lifestyle/allergy-medicine-actually...

    Adults and children aged six and up should take one 10 milligram tablet of Zyrtec a day, ... “It is mostly older antihistamines, such as Benadryl and hydroxyzine, where drug interactions occur ...

  3. Diphenhydramine - Wikipedia

    en.wikipedia.org/wiki/Diphenhydramine

    The elimination half-life of diphenhydramine has not been fully elucidated, but appears to range between 2.4 and 9.3 hours in healthy adults. [6] A 1985 review of antihistamine pharmacokinetics found that the elimination half-life of diphenhydramine ranged between 3.4 and 9.3 hours across five studies, with a median elimination half-life of 4.3 ...

  4. You May Want To Skip Allergy Meds With Decongestant In The ...

    www.aol.com/may-want-skip-allergy-meds-155300887...

    Allergy Tablet. Xyzal, a.k.a. levocetirizine, "is the best prescription-strength oral antihistamine," Dr. Li says. It helps with sneezing, a runny or itchy nose or itchy throat, and watery eyes.

  5. Anti-allergic agent - Wikipedia

    en.wikipedia.org/wiki/Anti-allergic_agent

    Another type of antihistamines known as H2-antihistamines are used to treat gastrointestinal conditions caused by excessive stomach acid. [8] Mechanism. H-1 antihistamines work by inhibiting histamine from binding to H-1 receptors. Histamine receptors expressed in smooth muscles, vascular endothelial cells, the heart, and the central nervous ...

  6. 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.

  7. Benadryl - Wikipedia

    en.wikipedia.org/wiki/Benadryl

    Benadryl Allergy is widely used as a sleep aid among adults. While it is not marketed as an over-the-counter (OTC) sleeping aid, most versions of Benadryl contain diphenhydramine, a drug with sedative properties. [6] Diphenhydramine (Benadryl) has also been used by parents to help improve their infant's sleep habits.

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