hypolipémiant colestyramine Flashcards

1
Q

mécanisme colestyramine

A

résine basique echangeuse d’ion
diminue résorption acides biliaires dans jéjunum (x10)
diminue résorption dig cholestérol alimentaire = diminue taux C intra-hépathocytaire
augmente catabo C en acide biliaires -> effet indirect
augmente excrétion R LDL = diminue LDL plasma (20%)

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2
Q

PDYN colestyramine

A

diminution LDL dose-dépendante
augmentation transitoire VLDL

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3
Q

médoc

A

colestyramine

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4
Q

colestyramine

A

questran

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5
Q

utilisation thérapeutique colestyramine

A

2/3 j pdt repas
granulés + eau pdt 1min = polymère insoluble
20g/j -> atteinte progressive

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6
Q

PKIN colestyramine

A

absorption : pas absorbée
elimination : selles

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7
Q

indication colestyramines

A

hyperC pure IIa adulte et enfant +10 ans, 2eme intention
hyperlipidémie mixte IIb avec augmentation LDL, associer fibrates
prévention primaire diminue morbidité cardio-vascu
prurit cholestase
intox digitalique

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8
Q

effets indésirables colestyramine

A

fréquents : constipation, ballonnement intestinaux
occasionnels : brulures estomac, diarrhée
rares : malabsorption Vit K

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9
Q

contre-indication colestyramines

A

cholestase complète avec risque stéatorrhée
hypersensibilité

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10
Q

interaction colestyramine

A

diminue absorption nombreux médoc : AVK…
délai prise : 1/2h après prise résine

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