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Histamine_PDA

Pharmacology, Medicinal

QuestionAnswer
What type of receptors are histamines? G-Protein Coupled Receptors
H-2 receptors are located where? What does it do? Located on the vagus nerve, it promotes generation of stomach acid
H-3 Receptors found where? CNS pre-synpatic neurons
H-3 receptors have same function as what type of receptors? Alpha -2
Inhibits the release of histamine when activated, what receptor does this? H-3
What are the administration routes of histamines? P.O, Topically, Spray, Eye Drops
Which generation of histamines is given p.o and is metabolized by P450? 2nd generation
Allegra, Claritin, Clarinex, Zyrtec, and Xyzal are which type of generation histamines? 2nd generation
Effects of histamine include: Vasodilation (H-1) vessels Edema Itching Constriction of Bronchioles (H-2) Secretion of H+
H-2 blockers prevent H+ in the stomach which causes pH to increase or decrease? Increase
H-2 blockers are used to treat what? GERD Peptic Ulcer Z-E Syndrome
H2 antagonist are structurally related to? Histamine
Created by: dbpharm13
Popular Pharmacology sets

 

 



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