Mirabegron and Tamsulosin Interaction
Drug interaction information between Mirabegron and Tamsulosin.
Mirabegron and Tamsulosin have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Mirabegron and Tamsulosin. This page displays the available source-record category and label text. The category is not an individual risk estimate or medication-combination direction.
How They Interact
Studies show that these two drugs do not significantly change how the body handles either medication.
FDA Label Information
Drug interaction studies were conducted in adult patients to investigate the effect of coadministered drugs on the pharmacokinetics of mirabegron and the effect of mirabegron on the pharmacokinetics of coadministered drugs (e.g., ketoconazole, rifampin, solifenacin succinate, tamsulosin, and oral contraceptives) [see Clinical Pharmacology ( 12.3 )] .
Mirabegron Also Interacts With
- Warfarin minor
- Ketoconazole minor
- Rifampin minor
- Solifenacin minor
- Digoxin minor
Tamsulosin Also Interacts With
- Furosemide major
- Paroxetine moderate
- Warfarin moderate
- Erythromycin moderate
- Terbinafine moderate
Frequently Asked Questions
What SPL severity band is on file for Mirabegron + Tamsulosin?
Compiled FDA labeling labels this pair minor. That is a source-record field, not an individual medication-combination decision.
Which drug in this pair has the larger labeled-interaction portfolio?
Tamsulosin has 18 labeled pairs on file vs Mirabegron's 6. In the minor band specifically: Mirabegron has 6 (also Warfarin, Ketoconazole, Rifampin, Solifenacin); Tamsulosin has 9 (also Atenolol, Nifedipine, Ketoconazole, Enalapril).
What mechanism field is on file for Mirabegron and Tamsulosin?
Studies show that these two drugs do not significantly change how the body handles either medication.
Tamsulosin carries more major-labeled pairs than Mirabegron
SPL source-record counts only. This page's band is minor · classes on file: Mirabegron (Beta-3 Agonist (Overactive Bladder)); Tamsulosin (Alpha-1 Adrenergic Blocker).
Tamsulosin has 1 major-labeled pair vs Mirabegron's 0. This page itself is in the minor band, not the major band.
0 major · 0 moderate · 6 minor · 6 total
- Other minor peers for Mirabegron
- Warfarin
- Ketoconazole
- Rifampin
- Solifenacin
1 major · 8 moderate · 9 minor · 18 total
- Other minor peers for Tamsulosin
- Atenolol
- Nifedipine
- Ketoconazole
- Enalapril
Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. This registry does not provide individual medication-combination directions.
Read our methodology - how this data is sourced, computed, and verified.