Skip to content

Drug interactions

Silodosin + Treprostinil

Severity: Minor

Silodosin and Treprostinil: minor 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

Treprostinil is a potent vasodilator and may add to the blood pressure lowering of silodosin. Patients may experience symptomatic hypotension, dizziness or syncope.

What this interaction means in plain words

Silodosin and Treprostinil have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Silodosin belongs to Genitourinary; Treprostinil belongs to Cardiovascular.

Evidence level: Low

Why it happens

Additive vasodilatory pharmacodynamic effects of a prostacyclin analogue and an alpha-1 blocker.

What to do

Monitor blood pressure and orthostatic symptoms when starting or adjusting either drug.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Silodosin and Treprostinil, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 14 days on the web. No card needed.

Frequently asked questions

Can I take Silodosin with Treprostinil?

MediHelp rates the interaction as minor. Silodosin and Treprostinil have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Treprostinil is a potent vasodilator and may add to the blood pressure lowering of silodosin. Patients may experience symptomatic hypotension, dizziness or syncope.

How serious is the interaction between Silodosin and Treprostinil?

MediHelp rates it minor, 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 when starting or adjusting either drug.

What other medicines interact with Silodosin?

MediHelp also lists interactions of Silodosin with, for example, Atazanavir, Conivaptan, Darunavir. The full list is on the Silodosin 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.

Browse A–Z · Drug interactions

Get the app Sign in