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Doxazosin (drug) — Competitive Intelligence Brief

Doxazosin (drug) (Doxazosin (drug)) competitive landscape: 6 comparators, recent regulatory actions, upcoming PDUFA, patent timeline. Class: Alpha-1 adrenergic receptor antagonist. Area: Cardiovascular; Urology.

marketed Alpha-1 adrenergic receptor antagonist Alpha-1 adrenergic receptor Cardiovascular; Urology Small molecule Live · refreshed every 30 min

Target snapshot

Doxazosin (drug) (Doxazosin (drug)) — Japan Heart Foundation. Doxazosin is an alpha-1 adrenergic receptor antagonist that blocks norepinephrine signaling in blood vessels and the prostate, causing vasodilation and smooth muscle relaxation.

Comparator set (6 drugs)

Auto-detected by same drug class / molecular target / therapeutic area, ranked by phase + recency. Override with ?vs=slug1,slug2,….

DrugGenericSponsorPhaseClassTargetApproval / PDUFA
Doxazosin (drug) TARGET Doxazosin (drug) Japan Heart Foundation marketed Alpha-1 adrenergic receptor antagonist Alpha-1 adrenergic receptor
Xylometazoline - intranasal application Xylometazoline - intranasal application Association Asthma, Bulgaria marketed Alpha-1 adrenergic agonist (nasal decongestant) Alpha-1 adrenergic receptor
Visine® for Contacts® Visine® for Contacts® Merck Sharp & Dohme LLC marketed Ophthalmic decongestant Alpha-1 adrenergic receptor
diphenhydramine/phenylephrine/cocoa; placebo; dextromethorphan diphenhydramine/phenylephrine/cocoa; placebo; dextromethorphan Montefiore Medical Center marketed Combination cold/cough/allergy remedy H1 histamine receptor (diphenhydramine); alpha-1 adrenergic receptor (phenylephrine); NMDA receptor and sigma-1 receptor (dextromethorphan)
Norepinephrine (static group) Norepinephrine (static group) Algemeen Ziekenhuis Maria Middelares marketed Catecholamine vasopressor Alpha-1 adrenergic receptor, Beta-1 adrenergic receptor
Epinephrine Injection Epinephrine Injection London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's marketed Catecholamine; alpha and beta adrenergic agonist Alpha-1 adrenergic receptor, Beta-1 adrenergic receptor, Beta-2 adrenergic receptor
Experimental dosing of labetalol Experimental dosing of labetalol Albany Medical College marketed Alpha-beta adrenergic antagonist Alpha-1 adrenergic receptor, Beta-1 adrenergic receptor, Beta-2 adrenergic receptor

Recent regulatory actions (last 90 days)

No regulatory actions in the last 90 days for this set.

Upcoming PDUFA dates (next 180 days)

No PDUFA dates in the next 180 days for this set.

Patent timeline (forward window)

No upcoming patent expiries for this set.

Sponsor landscape (Alpha-1 adrenergic receptor antagonist class)

  1. Brian J Lipworth · 1 drug in this class
  2. CHU de Quebec-Universite Laval · 1 drug in this class
  3. Eli Lilly and Company · 1 drug in this class
  4. Haffkine Bio-Pharmaceutical Corporation Ltd. · 1 drug in this class
  5. Hospital Authority, Hong Kong · 1 drug in this class
  6. Japan Heart Foundation · 1 drug in this class
  7. Pfizer's Upjohn has merged with Mylan to form Viatris Inc. · 1 drug in this class
  8. San Francisco Veterans Affairs Medical Center · 1 drug in this class
  9. Sanofi · 1 drug in this class
  10. Shanghai Huilun Pharmaceutical Co., Ltd. · 1 drug in this class

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Cite this brief

Drug Landscape (2026). Doxazosin (drug) — Competitive Intelligence Brief. https://druglandscape.com/ci/doxazosin-drug. Accessed 2026-05-16.

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