Does Diazepam Interact with Doxazosin?
The doxazosin label lists diazepam among medicines used concurrently in clinical trials. It says no interactions were observed in that experience, while noting that formal interaction studies were not conducted.
Label evidence and limitations
Non-adverse finding in the compared passage. This passage does not document an adverse diazepam–doxazosin interaction or establish universal safety. The stored CDI record should not be read as a confirmed harmful interaction.
Product scope: Oral doxazosin tablets; reported coadministration experience.
Read the DailyMed label: DOXAZOSIN TABLETS, USP Rx Only
Section: Drug Interactions. Compared version 1, label date 2018-03-06. The linked label may be updated after this comparison.
The original record has no saved label identifier. This comparison uses a label located during the source check; it does not recover the original extraction source.
AI-assisted source comparison dated 2026-10-16. This is a comparison of label text, not independent clinical review or an individual safety assessment. CDI's stored severity category is not an FDA-assigned rating. Confirm your exact medicines and formulations with your pharmacist or prescriber before changing treatment.
- Stored CDI classification
- Unknown
- Diazepam Class
- Benzodiazepine
- Management
- Confirm exact products with your pharmacist
- Data Source
- Product label via NLM DailyMed
What To Tell Your Doctor or Pharmacist
If you are taking Diazepam and your doctor is considering prescribing Doxazosin (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Never stop or change either medication without first consulting your healthcare provider