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Drug interactions

Mirtazapine + Same

Severity: Moderate

Mirtazapine and Same: 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

S-adenosylmethionine (SAMe) may enhance serotonergic activity, and mirtazapine also increases serotonergic and noradrenergic transmission. Combined use could contribute to serotonin toxicity, although reports are limited.

What this interaction means in plain words

Mirtazapine and Same 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.

Evidence level: Low

Why it happens

Possible additive serotonergic effects; the mechanism for SAMe is not firmly established.

What to do

Monitor for agitation, tremor, sweating, hyperreflexia and diarrhea after starting or increasing either agent. Stop SAMe if serotonin toxicity symptoms occur.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Mirtazapine with Same?

MediHelp rates the interaction as moderate. Mirtazapine and Same 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. S-adenosylmethionine (SAMe) may enhance serotonergic activity, and mirtazapine also increases serotonergic and noradrenergic transmission. Combined use could contribute to serotonin toxicity, although reports are limited.

How serious is the interaction between Mirtazapine and Same?

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 for agitation, tremor, sweating, hyperreflexia and diarrhea after starting or increasing either agent. Stop SAMe if serotonin toxicity symptoms occur.

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.

Full monographs, dosing and an interaction checker in the MediHelp app

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