Tamsulosin and Atenolol Interaction
Drug interaction information between Tamsulosin and Atenolol.
Tamsulosin and Atenolol have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Tamsulosin and Atenolol. 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
These two medicines do not interfere with each other in a way that changes how they work in the body.
FDA Label Information
7.5 Nifedipine, Atenolol, Enalapril Dosage adjustments are not necessary when tamsulosin hydrochloride capsules are administered concomitantly with nifedipine, atenolol, or enalapril [see Clinical Pharmacology (12.3)].
Tamsulosin Also Interacts With
- Furosemide major
- Paroxetine moderate
- Warfarin moderate
- Erythromycin moderate
- Terbinafine moderate
Atenolol Also Interacts With
- Aspirin major
- Theophylline major
- Clonidine minor
- Amiodarone minor
- Epinephrine minor
Frequently Asked Questions
What SPL severity band is on file for Tamsulosin + Atenolol?
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 Atenolol's 14. In the minor band specifically: Tamsulosin has 9 (also Nifedipine, Ketoconazole, Enalapril, Digoxin); Atenolol has 12 (also Clonidine, Amiodarone, Epinephrine, Indomethacin).
What mechanism field is on file for Tamsulosin and Atenolol?
These two medicines do not interfere with each other in a way that changes how they work in the body.
Atenolol carries more major-labeled pairs than Tamsulosin
SPL source-record counts only. This page's band is minor · classes on file: Tamsulosin (Alpha-1 Adrenergic Blocker); Atenolol (Beta-1 Selective Blocker).
Atenolol has 2 major-labeled pairs vs Tamsulosin's 1. This page itself is in the minor band, not the major band.
1 major · 8 moderate · 9 minor · 18 total
- Other minor peers for Tamsulosin
- Nifedipine
- Ketoconazole
- Enalapril
- Digoxin
2 major · 0 moderate · 12 minor · 14 total
- Other minor peers for Atenolol
- Clonidine
- Amiodarone
- Epinephrine
- Indomethacin
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.