Terazosin

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

16 interactions 1 explained in plain English

Also sold as: Hytrin® Tezruly

About Terazosin

Terazosin is used in men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia or BPH), which include difficulty urinating (hesitation, dribbling, weak stream, and incomplete bladder emptying), painful urination, and urinary frequency and urgency. It also is used alone or in combination with other… Read the full Terazosin drug information page →

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated Jun 30, 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: Alfuzosin Avanafil Melphalan Melphalan Injection

4 Major 12 Moderate

All (16) Major (4) Moderate (12)

Major

Terazosin Alfuzosin UroXatral Increased effects of alpha adrenergic blockade Details Terazosin Avanafil Stendra Increased risk of hypotension Details Terazosin Melphalan Alkeran An increased risk of severe hypotension Details Terazosin Melphalan Injection Alkeran An increased risk of severe hypotension 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.