Interações medicamentosas
Fluoxetine + Pimozide
Gravidade: Contraindicada
Fluoxetine and Pimozide: contraindicated interaction.
Última atualização Fontes: US FDA label
Para profissionais de saúde — apenas referência. Esta página é um resumo breve, não é aconselhamento médico nem substitui a bula oficial ou o julgamento clínico. Verifique sempre antes de prescrever ou dispensar.
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Resumo
Fluoxetine inhibits CYP2D6 and CYP3A4 and can raise pimozide concentrations, increasing the risk of QT prolongation and torsades de pointes. Both product labels contraindicate the combination. The effect is dose-related and most dangerous in people with cardiac disease, electrolyte disturbances or CYP2D6 poor metaboliser status.
O que esta interação significa em palavras simples
Fluoxetine and Pimozide are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Fluoxetine belongs to Central Nervous System; Pimozide belongs to Central Nervous System.
Por que acontece
Fluoxetine and norfluoxetine inhibit CYP2D6 and to a lesser extent CYP3A4, reducing pimozide clearance, and both drugs may have additive effects on cardiac repolarisation.
O que fazer
Do not co-administer. Use an alternative antidepressant or antipsychotic without QT or CYP-inhibitory interaction, and obtain an ECG and correct potassium and magnesium if either drug has recently been taken.
O que perguntar ao farmacêutico
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Referências
Outras interações de Fluoxetine
- Fluoxetine + Isocarboxazid Contraindicada
- Fluoxetine + Mavacamten Contraindicada
- Fluoxetine + Methylene blue Contraindicada
- Fluoxetine + Phenelzine Contraindicada
- Fluoxetine + Rasagiline Contraindicada
- Fluoxetine + Selegiline Contraindicada
Outras interações de Pimozide
- Adagrasib + Pimozide Contraindicada
- Amiodarone + Pimozide Contraindicada
- Amisulpride + Pimozide Contraindicada
- Amitriptyline + Pimozide Contraindicada
- Amoxapine + Pimozide Contraindicada
- Anagrelide + Pimozide Contraindicada
Perguntas frequentes
Can I take Fluoxetine with Pimozide?
MediHelp rates the interaction as contraindicated. Fluoxetine and Pimozide are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Fluoxetine inhibits CYP2D6 and CYP3A4 and can raise pimozide concentrations, increasing the risk of QT prolongation and torsades de pointes. Both product labels contraindicate the combination. The effect is dose-related and most dangerous in people with cardiac disease, electrolyte disturbances or CYP2D6 poor metaboliser status.
How serious is the interaction between Fluoxetine and Pimozide?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not co-administer. Use an alternative antidepressant or antipsychotic without QT or CYP-inhibitory interaction, and obtain an ECG and correct potassium and magnesium if either drug has recently been taken.
What other medicines interact with Fluoxetine?
MediHelp also lists interactions of Fluoxetine with, for example, Isocarboxazid, Mavacamten, Methylene blue. The full list is on the Fluoxetine page.
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