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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. Actifed - Wikipedia

   en.wikipedia.org/wiki/Actifed

   The original formula for Actifed contained pseudoephedrine hydrochloride 60 mg as the nasal decongestant and triprolidine hydrochloride 2.5 mg as the antihistamine. . However, in response to widespread laws requiring products containing pseudoephedrine to be kept behind the pharmacy counter, Pfizer changed Actifed's U.S. formula in late 2006 to contain phenylephrine HCl 10 mg as the nasal ...

4. 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]

5. Hydroxyzine - Wikipedia

   en.wikipedia.org/wiki/Hydroxyzine

   PET studies with antihistamines have found that brain H 1 receptor occupancy of more than 50% is associated with a high prevalence of somnolence and cognitive decline, whereas brain H 1 receptor occupancy of less than 20% is considered to be non-sedative. [46] Hydroxyzine also acts as a functional inhibitor of acid sphingomyelinase. [47]

6. Loratadine - Wikipedia

   en.wikipedia.org/wiki/Loratadine

   Loratadine, sold under the brand name Claritin among others, is a medication used to treat allergies. [5] This includes allergic rhinitis (hay fever) and hives. [5] It is also available in drug combinations such as loratadine/pseudoephedrine, in which it is combined with pseudoephedrine, a nasal decongestant. [5]

7. Antihistamine - Wikipedia

   en.wikipedia.org/wiki/Antihistamine

   An H 3-antihistamine is a classification of drugs used to inhibit the action of histamine at the H 3 receptor. H 3 receptors are primarily found in the brain and are ...