Interações medicamentosas
Methylene blue + Venlafaxine
Gravidade: Contraindicada
Methylene blue and Venlafaxine: contraindicated interaction.
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Resumo
Methylene blue is a potent MAO-A inhibitor and, combined with serotonin reuptake inhibitors like venlafaxine, can cause severe serotonin syndrome. Reactions have occurred with intravenous methylene blue given for methemoglobinemia or during surgery.
O que esta interação significa em palavras simples
Methylene blue and Venlafaxine 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.
Por que acontece
MAO-A inhibition by methylene blue added to serotonin reuptake inhibition.
O que fazer
Avoid unless methylene blue is needed for an emergency; then stop venlafaxine and monitor for serotonin toxicity for up to 2 weeks or until 24 hours after the last methylene blue dose, whichever comes first.
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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Outras interações de Venlafaxine
- Isocarboxazid + Venlafaxine Contraindicada
- Phenelzine + Venlafaxine Contraindicada
- Procarbazine + Venlafaxine Contraindicada
- Rasagiline + Venlafaxine Contraindicada
- Safinamide + Venlafaxine Contraindicada
- Selegiline transdermal + Venlafaxine Contraindicada
Perguntas frequentes
Can I take Methylene blue with Venlafaxine?
MediHelp rates the interaction as contraindicated. Methylene blue and Venlafaxine 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. Methylene blue is a potent MAO-A inhibitor and, combined with serotonin reuptake inhibitors like venlafaxine, can cause severe serotonin syndrome. Reactions have occurred with intravenous methylene blue given for methemoglobinemia or during surgery.
How serious is the interaction between Methylene blue and Venlafaxine?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid unless methylene blue is needed for an emergency; then stop venlafaxine and monitor for serotonin toxicity for up to 2 weeks or until 24 hours after the last methylene blue dose, whichever comes first.
What other medicines interact with Venlafaxine?
MediHelp also lists interactions of Venlafaxine with, for example, Isocarboxazid, Phenelzine, Procarbazine. The full list is on the Venlafaxine page.
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