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Drug interactions

Chlorpromazine + Tranylcypromine

Severity: Moderate

Chlorpromazine and Tranylcypromine: 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

Chlorpromazine causes alpha-blockade and hypotension, and MAO inhibitors can independently cause orthostatic hypotension. Together hypotension and sedation may be more pronounced, and extrapyramidal effects may be worsened.

What this interaction means in plain words

Chlorpromazine and Tranylcypromine 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.

Chlorpromazine belongs to Central Nervous System; Tranylcypromine belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive hypotensive, sedative and anticholinergic pharmacodynamic effects.

What to do

Monitor blood pressure including orthostatic readings and titrate slowly. Reduce the dose of either agent if symptomatic hypotension occurs.

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 Chlorpromazine with Tranylcypromine?

MediHelp rates the interaction as moderate. Chlorpromazine and Tranylcypromine 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. Chlorpromazine causes alpha-blockade and hypotension, and MAO inhibitors can independently cause orthostatic hypotension. Together hypotension and sedation may be more pronounced, and extrapyramidal effects may be worsened.

How serious is the interaction between Chlorpromazine and Tranylcypromine?

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 blood pressure including orthostatic readings and titrate slowly. Reduce the dose of either agent if symptomatic hypotension occurs.

What other medicines interact with Tranylcypromine?

MediHelp also lists interactions of Tranylcypromine with, for example, 5-HTP, Amitriptyline, Amoxapine. The full list is on the Tranylcypromine page.

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

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