Tamsulosin and Vardenafil: Drug Interaction Guide

Quick answer: This combination requires caution. Tamsulosin and Vardenafil can be used together with adjustments and monitoring.

Interaction severity: Moderate — caution required

How Tamsulosin interacts with Vardenafil

Both agents cause vasodilation via different mechanisms (alpha-1 blockade and PDE5 inhibition); concurrent use causes additive reduction in blood pressure with risk of symptomatic hypotension and syncope.

What you should do

Stabilise patient on tamsulosin first, then start vardenafil at the lowest dose (5 mg); separate dosing by at least 6 hours and warn patient about orthostatic symptoms.

Key facts

Severity

Moderate — caution required

Mechanism

Both agents cause vasodilation via different mechanisms (alpha-1 blockade and PDE5 inhibition); concurrent use causes ad...

Action

Stabilise patient on tamsulosin first, then start vardenafil at the lowest dose (5 mg); separate dosing by at least 6 ho...

Important medical disclaimer: This page provides educational information about drug interactions for general reference. It is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your specific medications with a qualified healthcare provider before starting, stopping, or changing any treatment. About our editorial team.

Frequently asked questions

Can I take Tamsulosin and Vardenafil together?

With caution. Stabilise patient on tamsulosin first, then start vardenafil at the lowest dose (5 mg); separate dosing by at least 6 hours and warn patient about orthostatic symptoms.

What is the severity of this interaction?

The interaction between Tamsulosin and Vardenafil is classified as Moderate — caution required. Both agents cause vasodilation via different mechanisms (alpha-1 blockade and PDE5 inhibition); concurrent use causes additive reduction in blood pressure with risk of symptomatic hypotension and syncope.

What should I do if I'm prescribed both?

Stabilise patient on tamsulosin first, then start vardenafil at the lowest dose (5 mg); separate dosing by at least 6 hours and warn patient about orthostatic symptoms. Always consult your prescribing clinician — do not stop or change medications without medical guidance.

Last reviewed: by iMedic Medical Editorial Team. Our editorial process.