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Drug interactions

Tamsulosin + Ticlopidine

Severity: Moderate

Tamsulosin and Ticlopidine: 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

Ticlopidine inhibits CYP2D6 (and CYP2C19) and may increase tamsulosin exposure. This may cause dizziness and orthostatic hypotension.

What this interaction means in plain words

Tamsulosin and Ticlopidine 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.

Tamsulosin belongs to Genitourinary; Ticlopidine belongs to Cardiovascular.

Evidence level: Low

Why it happens

Ticlopidine inhibits CYP2D6, reducing tamsulosin clearance.

What to do

Monitor blood pressure and orthostatic symptoms, and reduce the tamsulosin dose if symptomatic.

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 Tamsulosin with Ticlopidine?

MediHelp rates the interaction as moderate. Tamsulosin and Ticlopidine 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. Ticlopidine inhibits CYP2D6 (and CYP2C19) and may increase tamsulosin exposure. This may cause dizziness and orthostatic hypotension.

How serious is the interaction between Tamsulosin and Ticlopidine?

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 and orthostatic symptoms, and reduce the tamsulosin dose if symptomatic.

What other medicines interact with Tamsulosin?

MediHelp also lists interactions of Tamsulosin with, for example, Alfuzosin, Avanafil, Ceritinib. The full list is on the Tamsulosin 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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