Drug interactions
Mirtazapine + Opium tincture
Severity: Moderate
Mirtazapine and Opium tincture: 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
Opium tincture contains morphine and other opioids that depress the central nervous system. Combined with mirtazapine, sedation, impaired psychomotor performance and respiratory depression may be increased.
What this interaction means in plain words
Mirtazapine and Opium tincture 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.
Why it happens
Additive CNS depression from opioid agonism and mirtazapine's H1 antihistaminic effects.
What to do
Use the lowest effective opioid dose and monitor sedation and respiratory rate, especially when starting or titrating. Advise patients to avoid alcohol and driving.
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?
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Other interactions of Mirtazapine
- Isocarboxazid + Mirtazapine Contraindicated
- Mirtazapine + Phenelzine Contraindicated
- Mirtazapine + Pimozide Contraindicated
- Mirtazapine + Procarbazine Contraindicated
- Mirtazapine + Rasagiline Contraindicated
- Mirtazapine + Selegiline Contraindicated
Frequently asked questions
Can I take Mirtazapine with Opium tincture?
MediHelp rates the interaction as moderate. Mirtazapine and Opium tincture 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. Opium tincture contains morphine and other opioids that depress the central nervous system. Combined with mirtazapine, sedation, impaired psychomotor performance and respiratory depression may be increased.
How serious is the interaction between Mirtazapine and Opium tincture?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective opioid dose and monitor sedation and respiratory rate, especially when starting or titrating. Advise patients to avoid alcohol and driving.
What other medicines interact with Mirtazapine?
MediHelp also lists interactions of Mirtazapine with, for example, Isocarboxazid, Phenelzine, Pimozide. The full list is on the Mirtazapine page.
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