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17 Cards in this Set
- Front
- Back
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first gen antihis?
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H1-receptor antagonist
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second gen antihis?
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H2-receptor antagonists
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reduce gastric acidity, treat urticaria
What antagonists? |
H2-receptor antagonists
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Located in CNS
no therapeutic indication |
H3-receptors
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FDA withdraws because these agents were predisposed to torsades de pointes
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terfenadine
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caridac arrhythmia which may cause blackouts or even sudden death
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Torsades de pointes
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H2 receptor antagonists(4)
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cimetidine
ranitidine famotidine nizatidine |
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How does H2 affect gastric acidity
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reduce gastric acidity
*treat urticaria |
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Sympathomimetic agents taht act on alpha adrenergic
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Decongestants
*Prdouce vasoconstriction Shrink swollen mucous membranes Improve ventilation |
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powerful alpha-adrenergic receptor agonist
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Phenylephrin
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Direct acting nonspecifinc alpha and beta adrenergic recetpr stimultants
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Pseudoephedrin
and Ephedrine |
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A-adrenergic stimulant
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phenylpropanolamine
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Decongestant that used as topical agent
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imidazoline
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Stimulates alph2 and H2 receptors
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Tetrahydrozoline
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H1 receptor antagonist SEs
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Dry mouth
mydriasis sedation |
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H2 receptor antagonists OD like cimetidine. on Rapid IV
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Bradycardia
Lypotension CA |
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Decongestant OD(4)
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CNS stimulation
Hypertension Tachycardia Reflex bradycardia |
