Drug interactions
Morphine + Paliperidone
Severity: Moderate
Morphine and Paliperidone: moderate 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
Paliperidone can cause somnolence and orthostatic hypotension, and with morphine these effects are additive. This can increase fall risk and impair alertness, especially in older adults.
What this interaction means in plain words
Morphine and Paliperidone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Morphine belongs to Musculoskeletal; Paliperidone belongs to Central Nervous System.
Why it happens
Additive CNS depressant and hypotensive effects.
What to do
Monitor sedation and blood pressure, particularly on initiation or dose increases, and use lower starting doses in elderly patients.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Morphine and Paliperidone, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
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 Paliperidone
- Ibutilide + Paliperidone Contraindicated
- Paliperidone + Pimozide Contraindicated
- Paliperidone + Vandetanib Contraindicated
- Adagrasib + Paliperidone Major
- Amiodarone + Paliperidone Major
- Amisulpride + Paliperidone Major
Frequently asked questions
Can I take Morphine with Paliperidone?
MediHelp rates the interaction as moderate. Morphine and Paliperidone can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Paliperidone can cause somnolence and orthostatic hypotension, and with morphine these effects are additive. This can increase fall risk and impair alertness, especially in older adults.
How serious is the interaction between Morphine and Paliperidone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor sedation and blood pressure, particularly on initiation or dose increases, and use lower starting doses in elderly patients.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
