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Drug interactions

Imipramine + Tacrolimus

Severity: Moderate

Imipramine and Tacrolimus: 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 prolong the QT interval, so combined use may increase the risk of ventricular arrhythmia, particularly with electrolyte disturbances or heart disease.

What this interaction means in plain words

Imipramine and Tacrolimus 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.

Imipramine belongs to Central Nervous System; Tacrolimus belongs to Miscellaneous.

Evidence level: Low

Why it happens

Additive QT prolongation.

What to do

Monitor ECG and keep potassium and magnesium normal, especially in transplant patients with other risk factors. Check tacrolimus trough levels if therapy changes.

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 Imipramine with Tacrolimus?

MediHelp rates the interaction as moderate. Imipramine and Tacrolimus 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 prolong the QT interval, so combined use may increase the risk of ventricular arrhythmia, particularly with electrolyte disturbances or heart disease.

How serious is the interaction between Imipramine and Tacrolimus?

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 ECG and keep potassium and magnesium normal, especially in transplant patients with other risk factors. Check tacrolimus trough levels if therapy changes.

What other medicines interact with Imipramine?

MediHelp also lists interactions of Imipramine with, for example, Dronedarone, Isocarboxazid, Phenelzine. The full list is on the Imipramine 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.

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