Metronidazol (imidazol) Flashcards

1
Q

Espectro de accion de metronidazol

A

Trichomonas vaginalis
Entamoeba histolytica
Giardia lamblia
Bacterias anaerobias Gram- (H pylori yGardenella vaginalis)
Anaerobias Gram+ (Peptoestreptococos, C perfringens y difficile)

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2
Q

Mecanismo de accion de Metronidazol

A

Antibiotico antiparasitario
Forma aductos con proteinas y acidos nucleicos

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3
Q

Absorcion

A

Via oral (mas comun
, IV; topica, vaginal y rectal

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4
Q

Distribucion

A

Se distribuye en todos los tejidos y liquidos del organismo

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5
Q

Metronidazol es metabolizado por higado por la CYP450

A

Verdadero

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6
Q

Tarda 6 a 12 horas en ser excretado

A

Verdadero
Es excrecion renal

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7
Q

5% del metronidazol es excretado en CO2

A

Verdadero

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8
Q

Uso terapeutico de metronizdazol

A

Amibiasis
Trichomoniasis
H pylori
Vaginosis bacteriana
Enfermedad Crohn
Giardiasis
Otros usos (abscesos por bacterias anaerobias)

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9
Q

Posologia

A

500 cada 8 o 12 horas por 10 dias

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10
Q

TX de helicobacteri pylori

A

Amoxi
Metro
Claritro

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11
Q

Efectos adversos

A

Generales
Sabor metalico
Teratogenicidad
Embriotoxicidad
Neuropatia
Carcinogenicidad (en animales)

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