Drug interactions
Armodafinil + Morphine
Severity: Minor
Armodafinil and Morphine: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Armodafinil may offset some opioid sedation, but it does not reliably prevent respiratory depression. It may also weakly induce CYP3A4, which has little impact on morphine.
What this interaction means in plain words
Armodafinil and Morphine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Armodafinil belongs to Central Nervous System; Morphine belongs to Musculoskeletal.
Why it happens
Opposing pharmacodynamic effects on alertness; no meaningful pharmacokinetic interaction is established.
What to do
No adjustment needed; do not rely on armodafinil to counter opioid sedation and monitor respiratory status as usual.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Morphine
- Alvimopan + Morphine Contraindicated
- Isocarboxazid + Morphine Contraindicated
- Morphine + Olanzapine / samidorphan Contraindicated
- Morphine + Phenelzine Contraindicated
- Morphine + Tranylcypromine Contraindicated
- Alfentanil + Morphine Major
Other interactions of Armodafinil
Frequently asked questions
Can I take Armodafinil with Morphine?
MediHelp rates the interaction as minor. Armodafinil and Morphine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Armodafinil may offset some opioid sedation, but it does not reliably prevent respiratory depression. It may also weakly induce CYP3A4, which has little impact on morphine.
How serious is the interaction between Armodafinil and Morphine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No adjustment needed; do not rely on armodafinil to counter opioid sedation and monitor respiratory status as usual.
What other medicines interact with Morphine?
MediHelp also lists interactions of Morphine with, for example, Alvimopan, Isocarboxazid, Olanzapine / samidorphan. The full list is on the Morphine page.
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