Terazosin and Aspirin Interaction
Drug interaction information between Terazosin and Aspirin.
Terazosin and Aspirin have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Terazosin and Aspirin. 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 drugs have been used together in many patients without any harmful effects being reported. They do not typically interfere with each other.
FDA Label Information
Terazosin has been used concomitantly in at least 50 patients on the following drugs or drug classes: analgesic/anti-inflammatory (e.g., acetaminophen, aspirin, codeine, ibuprofen, indomethacin); antibiotics (e.g., erythromycin, trimethoprim and sulfamethoxazole); anticholinergic/sympathomimetics (e.g., phenylephrine hydrochloride, phenylpropanolamine hydrochloride, pseudoephedrine hydrochloride); antigout (e.g., allopurinol); antihistamines (e.g., chlorpheniramine); cardiovascular agents (e.g., atenolol, hydrochlorothiazide, methyclothiazide, propranolol); corticosteroids;...
Terazosin Also Interacts With
- Hydrochlorothiazide minor
- Ibuprofen minor
- Allopurinol minor
- Atenolol minor
- Acetaminophen minor
Aspirin Also Interacts With
- Atenolol major
- Fluoxetine major
- Ibandronate major
- Alendronate moderate
- Apixaban moderate
Frequently Asked Questions
What SPL severity band is on file for Terazosin + Aspirin?
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?
Aspirin has 47 labeled pairs on file vs Terazosin's 15. In the minor band specifically: Terazosin has 15 (also Hydrochlorothiazide, Ibuprofen, Allopurinol, Atenolol); Aspirin has 32 (also Carisoprodol, Celecoxib, Colestipol, Diflunisal).
What mechanism field is on file for Terazosin and Aspirin?
These drugs have been used together in many patients without any harmful effects being reported. They do not typically interfere with each other.
Aspirin carries more major-labeled pairs than Terazosin
SPL source-record counts only. This page's band is minor · classes on file: Terazosin (Alpha-1 Blocker); Aspirin (Antiplatelet / NSAID).
Aspirin has 3 major-labeled pairs vs Terazosin's 0. This page itself is in the minor band, not the major band.
0 major · 0 moderate · 15 minor · 15 total
- Other minor peers for Terazosin
- Hydrochlorothiazide
- Ibuprofen
- Allopurinol
- Atenolol
3 major · 12 moderate · 32 minor · 47 total
- Other minor peers for Aspirin
- Carisoprodol
- Celecoxib
- Colestipol
- Diflunisal
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.