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Prazosin (International)

In the US, Prazosin (prazosin systemic) is a member of the drug class antiadrenergic agents, peripherally acting and is used to treat Anxiety and Stress, Benign Prostatic Hyperplasia, Heart Failure, High Blood Pressure, Nightmares, Post Traumatic Stress Disorder and Raynaud's Syndrome.

US matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories

Antihypertensive agent

Peripheral vasodilator

Treatment of heart failure

α₁-adrenoceptor antagonist (α₁-blocker)

Treatment of symptoms of benign prostatic hyperplasia

Chemical Name

Piperazine, 1-(4-amino-6,7-dimetoxy-2-quinazolinyl)-4-(2-furanylcarbonyl)-

Foreign Names

  • Prazosinum (Latin)
  • Prazosin (German)
  • Prazosine (French)
  • Prazosina (Spanish)

Generic Names

  • Prazosin (OS: DCIT, BAN)
  • Prazosine (OS: DCF)
  • Furazosin (IS)
  • Prazosin Hydrochloride (OS: BANM, USAN, JAN)
  • CP 12299-1 (Pfizer) (IS)
  • Furazosin hydrochloride (IS)
  • Prazosin Hydrochloride (PH: BP 2018, JP XVII, USP 41)
  • Prazosin hydrochloride (PH: Ph. Eur. 9)
  • Prazosine (chlorhydrate de) (PH: Ph. Eur. 9)
  • Prazosinhydrochlorid (PH: Ph. Eur. 9)
  • Prazosini hydrochloridum (PH: Ph. Eur. 9)

Brand Names

  • Alpress LP
    Pfizer, Tunisia
  • CP-Prazo
    Christo, Hong Kong
  • Damin
    Shou Chan, Taiwan
  • Hyprosin
    Pacific, Taiwan
  • Minipres
    Pfizer, Ecuador; Pfizer, Spain
  • Minipress
    Pfizer, Egypt; Pfizer U.S., United States
  • Minipress 2 mg
    Pfizer, Hungary
  • Praten
    Labinco, Colombia
  • Pratsiol
    Orion, Taiwan
  • Prazocin
    Johnlee, India
  • Alphapress
    Renata, Bangladesh
  • Alpress LP 2,5 mg
    Pfizer, France
  • Alpress LP 5 mg
    Pfizer, France
  • Apo-Prazo
    Apotex, Canada; Apotex, Hong Kong; Apotex, Singapore
  • Apo-Prazosin
    Apotex, Australia; Apotex, New Zealand
  • Atodel
    Pharmaland, Thailand; Remedica, Cyprus
  • Chemmart Prazosin
    Apotex, Australia
  • Ensibest
    Best, Mexico
  • Hypovase
    Pfizer, United Kingdom; Pfizer, Ireland
  • Lopress
    Siam Bheasach, Thailand
  • Minipres
    Pfizer, Mexico
  • Minipress
    Laphal, France; Pfizer, Australia; Pfizer, Belgium; Pfizer, Hong Kong; Pfizer, Kuwait; Pfizer, Malaysia; Pfizer, Pakistan; Pfizer, Singapore; Pfizer, Taiwan; Pfizer Japan, Japan
  • Minipress 1 mg retard
    Pfizer, Hungary
  • Minipress 1mg
    Pfizer, Luxembourg
  • Minipress 2 mg retard
    Pfizer, Hungary
  • Minipress 2mg
    Pfizer, Luxembourg
  • Minipress 4 mg retard
    Pfizer, Hungary
  • Minipress 5mg
    Pfizer, Luxembourg
  • Minipress 6 mg retard
    Pfizer, Hungary
  • Minipress SR
    Wyeth Pharma, Brazil
  • Minipress-XL
    Pfizer, India
  • Minpres
    Pfizer, Venezuela
  • Polpressin
    Polpharma, Lithuania
  • Polypress
    Central Poly, Thailand
  • Pratsiol
    Orion Pharma, Finland; Pharmacare, South Africa
  • Prazopress
    Sun, India
  • Prazosin Double-Crane Pharm
    CR Double-Crane, China
  • Prazosin Hydrochloride
    Ivax, United States; Mylan, United States; Teva, United States
  • Prazosin Sopharma
    Sopharma, Bulgaria
  • Prazosin T.O.
    T.O. Chemicals, Thailand
  • Prazosina
    Data Pharm., Colombia
  • Sanosin
    Sanjivani, India
  • Terry White Chemists Prazosin
    Apotex, Australia
  • Teva-Prazosin
    Teva Canada, Canada
  • Vasoflex
    Alkaloid, Bosnia & Herzegowina; Alkaloid, Macedonia


BANBritish Approved Name
BANMBritish Approved Name (Modified)
DCFDénomination Commune Française
DCITDenominazione Comune Italiana
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name

Further information on drug naming conventions: International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.