Antihistamin Flashcards

1
Q

Antihistamin

A

Antagonister för H1 receptorn

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2
Q

Antihistamin effekt

A

Minskar vasodilation och kontraktion av glattmuskulatur och lättar symtom som rinnande näsa.

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3
Q

H1

A

*Kontraktion av glattmuskulatur.
*Vasodilation och ökad permeabilitet.
*Vakenhet, aptit, temp reglering

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4
Q

H2

A

*Ökad magsyrasekretion
* Ökad hjärttrytm och output

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5
Q

H3

A

Inhiberad neurotransmittorfrisättning

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6
Q

H4

A

Immun och blodcellskemotaxi

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7
Q

1a generationens antihistaminer

A

Når CNS och kan då orsaka sömnighet
ex. Hydroxyzin, prometazin

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8
Q

2a generationens antihistaminer

A

Når ej CNS
ex. Loratadin, desloratadin

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9
Q

Indikation H1 antagonister

A

Allergiska reaktioner, ångest oro, rörelseinducerat illamående

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10
Q

Indikation H2 antagonister

A

Halsbränna och sura uppstötningar

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