Anti-Influenza Flashcards

1
Q

Définition (3)

+ 1 critère (3)

A
  • Début abrupt
  • Fièvre
  • Toux

+1 critère
o Mal de gorge
o Arthralgie/myalgie
o Prostration/fatigue extrême.

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2
Q

Transmission

A

Gouttelettes.

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3
Q

Agent adamantane

A

Mantadine

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4
Q

Agent inhibiteur de la neuraminidase

A

Amivir

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5
Q

Amantadine

Spectre

A

Influenza A seulement.

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6
Q

Amantadine

Mécanisme

A

Bloque canal ionique M2 qui est responsable de l’acidification du virus.

Il empêche la décapsidation après l’endocytose.

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7
Q

Amantadine

Posologie prophylaxie VS TX

A

100 mg

DIE VS BID

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8
Q

Amantadine

EI

A
Dose dépendant.
Effets anticholinergiques.
Orthostatisme.
Effets SNC.
Constipation
Rétention urinaire
Arrythmies malignes avec surdosage.
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9
Q

Rimantadine

Disponibilité?

A

Non pas au canada

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10
Q

Inhibiteur de la neuraminidase

MA

A

Empêche le clivage de l’acide sialique et le relâchement des virions. Empêche la formation des agrégats viraux.

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11
Q

Inhibiteur de la neuraminidase

Spectre

A

Influenza A et B.

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12
Q

Inhibiteur de la neuraminidase

Résistance (2)

A

Mutation du gène neuraminidase charpente ou site catalytique. Pas croisée.

Mutation du gène hémagglutinine, résistance croisée.

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13
Q

Oseltamivir

Forme

A

PO, c’est un pro-Rx.

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14
Q

Oseltamivir

EI (3)

A

Céphalée, TGI, neuropsychiatrique.

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15
Q

Zanamivir

Absorption

A

Pas assez absorbé si maladie systémique H5N1. L’influenza n’est pas systémique mais localisé aux cellules épithéliales de l’arbre respiratoire.

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16
Q

Zanamivir

EI

A

Bronchospasme, surtout si asthme ou maladie pulmonaire.