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Pharmacology > Anti-Histamines > Flashcards

Anti-Histamines Flashcards

1
Q

Diphenhydramine

A

Benadryl
1st generation H1 antagonist (inverse agonist)
Inhibits rapid vasodilation
Contribute to inhibiting bronchoconstriction
Decrease permeability of vascular beds
CNS effects: causes drowsiness, can prevent motion sickness (as muscarinic antagonist)

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2
Q

Dimenhydrinate

A

Dramamine
1st generation H1 antagonist (inverse agonist)
Inhibits rapid vasodilation
Contribute to inhibiting bronchoconstriction
Decrease permeability of vascular beds
CNS effects: causes drowsiness, can prevent motion sickness (as muscarinic antagonist)

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3
Q

Chlorpheniramine

A

Chlor-Trimeton
1st generation H1 antagonist (inverse agonist)
Inhibits rapid vasodilation
Contribute to inhibiting bronchoconstriction
Decrease permeability of vascular beds
CNS effects: causes drowsiness, can prevent motion sickness (as muscarinic antagonist)

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4
Q

Cyclizine

A

Marezine
1st generation H1 antagonist (inverse agonist)
Inhibits rapid vasodilation
Contribute to inhibiting bronchoconstriction
Decrease permeability of vascular beds
CNS effects: causes drowsiness, can prevent motion sickness (as muscarinic antagonist)

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5
Q

Meclizine

A

Antivert
1st generation H1 antagonist (inverse agonist)
Inhibits rapid vasodilation
Contribute to inhibiting bronchoconstriction
Decrease permeability of vascular beds
CNS effects: causes drowsiness, can prevent motion sickness (as muscarinic antagonist)

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6
Q

Promethazine

A

Phenergan
1st generation H1 antagonist (inverse agonist)
Inhibits rapid vasodilation
Contribute to inhibiting bronchoconstriction
Decrease permeability of vascular beds
CNS effects: causes drowsiness, can prevent motion sickness (as muscarinic antagonist)

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7
Q

Loratidine

A

Claritin
2nd G. H1 antagonist (inverse agonist)
Same effects as 1st G.except NO CNS fx because can’t cross blood-brain barrier.

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8
Q

Desloratidine

A

Clarinex
Active form of Loratidine after First-Pass Metabolism.
2nd G. H1 antagonist (inverse agonist)
Same effects as 1st G.except NO CNS fx because can’t cross blood-brain barrier.

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9
Q

Fexofenadine

A

Allegra
2nd G. H1 antagonist (inverse agonist)
Same effects as 1st G.except NO CNS fx because can’t cross blood-brain barrier.

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10
Q

Cimetidine

A 
Tagamet
H2 antagonist
Antagonizes acid secretion
Also inhibits CYPs
Promotes ulcer healing
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11
Q

Ranitidine

A

Zantac
H2 antagonist
Antagonizes acid secretion
Promotes ulcer healing

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12
Q

Famotidine

A

Pepcid
H2 antagonist
Antagonizes acid secretion
Promotes ulcer healing

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Pharmacology (7 decks)

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