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  2. H1 antagonist - Wikipedia

    en.wikipedia.org/wiki/H1_antagonist

    The authors of the American College of Chest Physicians Updates on Cough Guidelines (2006) recommend that, for cough associated with the common cold, first-generation antihistamine-decongestants are more effective than newer, non-sedating antihistamines. First-generation antihistamines include diphenhydramine (Benadryl), carbinoxamine (Clistin ...

  3. Dexbrompheniramine - Wikipedia

    en.wikipedia.org/wiki/Dexbrompheniramine

    It was formerly marketed in combination with pseudoephedrine under the name Drixoral in the US and Canada. It is an alkylamine antihistamine. Dexbrompheniramine is a first generation antihistamine that reduces the effects of the neurotransmitter histamine in the body; sneezing, itching, watery eyes, and runny nose.

  4. Chlorphenamine - Wikipedia

    en.wikipedia.org/wiki/Chlorphenamine

    It is a first-generation antihistamine and works by blocking the histamine H 1 receptor. [2] Common side effects include sleepiness, restlessness, and weakness. Other side effects may include dry mouth and wheeziness. [2] Chlorpheniramine was patented in 1948 and came into medical use in 1949. [3] It is available as a generic medication and ...

  5. Anti-allergic agent - Wikipedia

    en.wikipedia.org/wiki/Anti-allergic_agent

    Anti-allergic agents are medications used to treat allergic reactions. Anti-allergic agents have existed since 3000 B.C in countries such as China and Egypt.It was not until 1933 when antihistamines, the first type of anti-allergic agents, were developed. [1]

  6. Antazoline - Wikipedia

    en.wikipedia.org/wiki/Antazoline

    Antazoline is a 1st generation antihistamine with anticholinergic properties used to relieve nasal congestion and in eye drops, usually in combination with naphazoline, to relieve the symptoms of allergic conjunctivitis. [1] To treat allergic conjunctivitis, antazoline can be combined in a solution with tetryzoline. [2]

  7. Antihistamine - Wikipedia

    en.wikipedia.org/wiki/Antihistamine

    The introduction of the first-generation antihistamines marked the beginning of medical treatment of nasal allergies. [28] Research into these drugs led to the discovery that they were H 1 receptor antagonists and also to the development of H 2 receptor antagonists , where H 1 -antihistamines affected the nose and the H 2 -antihistamines ...

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