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

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

    The long-acting, over-the-counter medication lasts up to 24 hours per dose, according to the Food and Drug Administration (FDA). It reaches peak concentration in your body an hour after you take ...

  3. 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.

  4. Hydroxyzine - Wikipedia

    en.wikipedia.org/wiki/Hydroxyzine

    Hydroxyzine, sold under the brand names Atarax and Vistaril among others, is an antihistamine medication. [8] It is used in the treatment of itchiness, anxiety, insomnia, and nausea (including that due to motion sickness). [8] It is used either by mouth or injection into a muscle. [8] Hydroxyzine works by blocking the effects of histamine. [9]

  5. Diphenhydramine - Wikipedia

    en.wikipedia.org/wiki/Diphenhydramine

    Diphenhydramine, sold under the brand name Benadryl among others, is an antihistamine and sedative.It is a first-generation H 1-antihistamine and it works by blocking certain effects of histamine, which produces its antihistamine and sedative effects.

  6. Is it COVID-19, a cold or the flu? Your guide to seasonal ...

    www.aol.com/lifestyle/covid-19-flu-colds-back...

    Over-the-counter decongestants or antihistamines can help with nasal symptoms, and pain relievers like acetaminophen (Tylenol) or ibuprofen (Advil) can help with muscle aches. RSV Symptoms

  7. Sominex - Wikipedia

    en.wikipedia.org/wiki/Sominex

    Sominex is the trademarked name for several over the counter sleep aids.. Different formulations of Sominex are available, depending upon the market. Both the US and UK formulations contain a significant dose of a first generation antihistamine with hypnotic properties.