Solifenacin and Ketoconazole Interaction
Drug interaction information between Solifenacin and Ketoconazole.
Solifenacin and Ketoconazole have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Solifenacin and Ketoconazole. 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
Ketoconazole stops the body from breaking down solifenacin, which leads to higher levels of the drug in your system.
FDA Label Information
Concomitant use of ketoconazole, a strong CYP3A4 inhibitor, significantly increased the exposure of solifenacin [ see Clinical Pharmacology ( 12.3 ) ].
Solifenacin Also Interacts With
- Darunavir major
- Itraconazole major
- Mirabegron minor
Ketoconazole Also Interacts With
- Alfuzosin major
- Dronedarone major
- Ranolazine major
- Saxagliptin major
- Sildenafil major
Frequently Asked Questions
What SPL severity band is on file for Solifenacin + Ketoconazole?
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?
Ketoconazole has 113 labeled pairs on file vs Solifenacin's 4. In the minor band specifically: Solifenacin has 2 (also Mirabegron); Ketoconazole has 85 (also Abiraterone, Acetaminophen/Oxycodone, Alosetron, Amphotericin B).
What mechanism field is on file for Solifenacin and Ketoconazole?
Ketoconazole stops the body from breaking down solifenacin, which leads to higher levels of the drug in your system.
Ketoconazole carries more major-labeled pairs than Solifenacin
SPL source-record counts only. This page's band is minor · classes on file: Solifenacin (Anticholinergic (Overactive Bladder)); Ketoconazole (Azole Antifungal).
Ketoconazole has 6 major-labeled pairs vs Solifenacin's 2. This page itself is in the minor band, not the major band.
6 major · 22 moderate · 85 minor · 113 total
- Other minor peers for Ketoconazole
- Abiraterone
- Acetaminophen/Oxycodone
- Alosetron
- Amphotericin B
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.