Doxazosin

Name: Doxazosin Drug Interactions
Creator: Dr. Brian Staiger, PharmD, BCPS

47 interactions 267 cited references

Also sold as: Cardura Cardura® Cardura® XL

About Doxazosin

Doxazosin is an alpha-blocker used to treat enlarged prostate symptoms and high blood pressure. Read the full Doxazosin drug information page →

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated Aug 10, 2026 · Editorial policy · Data sources

Sources: FDA prescribing information (Structured Product Labeling), the published literature cited in each entry, DDInter 2.0 (a major open-access drug-interaction database), and legacy DrugBank interaction data distributed by the NIH's RxNav service (decommissioned in 2024) — analyzed and reviewed by our pharmacist team. How we build this library →

Most serious with: Boceprevir Melphalan Injection Iloperidone Melphalan Milsaperidone Nifedipine

1 Contraindicated 11 Major 35 Moderate

All (47) Contraindicated (1) Major (11) Moderate (35)

Contraindicated

Doxazosin Boceprevir Increased doxazosin exposure Details

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Educational information only, not medical advice. Always confirm interactions with your pharmacist or prescriber before making any change to your medications.