Interações medicamentosas
Fentanyl + Olanzapine / samidorphan
Gravidade: Contraindicada
Fentanyl and Olanzapine / samidorphan: contraindicated interaction.
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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
Samidorphan blocks opioid receptors, reducing fentanyl's analgesic effect and potentially precipitating withdrawal in opioid-dependent patients. Attempts to overcome the blockade with higher opioid doses risk overdose.
O que esta interação significa em palavras simples
Fentanyl and Olanzapine / samidorphan 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
Samidorphan is a mu-opioid receptor antagonist that opposes fentanyl's agonist effects.
O que fazer
Ensure an opioid-free interval of at least 7 days for short-acting and 14 days for long-acting opioids before starting. Use an alternative antipsychotic in patients who need opioids.
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 Fentanyl
- Alvimopan + Fentanyl Contraindicada
- Fentanyl + Isocarboxazid Contraindicada
- Fentanyl + Phenelzine Contraindicada
- Fentanyl + Tranylcypromine Contraindicada
- Alfentanil + Fentanyl Grave
- Alprazolam + Fentanyl Grave
Perguntas frequentes
Can I take Fentanyl with Olanzapine / samidorphan?
MediHelp rates the interaction as contraindicated. Fentanyl and Olanzapine / samidorphan 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. Samidorphan blocks opioid receptors, reducing fentanyl's analgesic effect and potentially precipitating withdrawal in opioid-dependent patients. Attempts to overcome the blockade with higher opioid doses risk overdose.
How serious is the interaction between Fentanyl and Olanzapine / samidorphan?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Ensure an opioid-free interval of at least 7 days for short-acting and 14 days for long-acting opioids before starting. Use an alternative antipsychotic in patients who need opioids.
What other medicines interact with Fentanyl?
MediHelp also lists interactions of Fentanyl with, for example, Alvimopan, Isocarboxazid, Phenelzine. The full list is on the Fentanyl page.
Monografias completas, posologia e verificador de interações no app MediHelp
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