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Drug interactions

Aripiprazole + Protriptyline

Severity: Moderate

Aripiprazole and Protriptyline: 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

Both drugs can cause sedation and may impair psychomotor performance when combined. Protriptyline is also partly metabolized by CYP2D6, which aripiprazole depends on, so exposure to either drug may change, though the clinical significance is modest.

What this interaction means in plain words

Aripiprazole and Protriptyline 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

Additive CNS depressant effects, with possible minor competition for CYP2D6 metabolism.

What to do

Monitor for excessive sedation, orthostatic hypotension and anticholinergic effects, and counsel patients about driving. Adjust doses if adverse effects emerge.

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 Aripiprazole with Protriptyline?

MediHelp rates the interaction as moderate. Aripiprazole and Protriptyline 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. Both drugs can cause sedation and may impair psychomotor performance when combined. Protriptyline is also partly metabolized by CYP2D6, which aripiprazole depends on, so exposure to either drug may change, though the clinical significance is modest.

How serious is the interaction between Aripiprazole and Protriptyline?

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 excessive sedation, orthostatic hypotension and anticholinergic effects, and counsel patients about driving. Adjust doses if adverse effects emerge.

What other medicines interact with Aripiprazole?

MediHelp also lists interactions of Aripiprazole with, for example, Pimozide, Thioridazine, Amisulpride. The full list is on the Aripiprazole page.

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