Autacoid Drugs
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Histamine receptors | H1, H2, H3
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| H1 receptors | allergic reactions
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| Which receptor causes dermatitis, rhinitis, conjunctivitis? | H1 receptors
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| What happens if H1 receptors in the skin and mucous membrane are activated? | cause vasodilation,increases vascular permeability, and leads to erythema (heat and redness), congestion, edema and inflammation.
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| What are H2 receptors involved in? | increase gastric acid secretion, and cause allergic reactions
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| What happens if H2 receptors in the heart are activated? | increases the heart rate and contractility
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| what happens if H3 receptors are activated? | inhibit the release of histamine and other neurotransmitters
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| antihistamines | histamine receptor antagonists, H1, H2 receptor antagonists
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| Which generation of H1 receptor antagonist is preffered in treating allergies? why? | The second generation is preffered because it causes little or no sedation.
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Created by:
prinluu
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