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In some countries, this medicine may only be approved for veterinary use.

In the US, Methenamine (methenamine systemic) is a member of the drug class urinary anti-infectives and is used to treat Bladder Infection, Kidney Infections, Prevention of Bladder infection and Urinary Tract Infection.

US matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Categories


Urinary tract antiseptic

Chemical Name


Foreign Names

Generic Names

  • Hexamine (OS: JAN)
  • Metenamina (OS: DCIT)
  • Méthénamine (OS: DCF)
  • E 239 (IS)
  • Hexamethylentetramin (IS)
  • Hexamethylentetraminum (IS)
  • Hexaminum (IS)
  • Methenamidum (IS)
  • Urometine (IS)
  • Urotropin (IS)
  • Methenamin (PH: Ph. Eur. 8)
  • Methenamine (PH: BP 2016, Ph. Eur. 8, USP 38)
  • Méthénamine (PH: Ph. Eur. 8)
  • Methenaminum (PH: Ph. Eur. 8, Ph. Helv. 8)
  • Formanol (IS)
  • Hexacitrol (IS)
  • Neotramin (IS)
  • Uropurgol (IS)
  • Esametilentetrammina anidrometilencitrato (PH: F.U. VIII)
  • Methenamine Hippurate (OS: BAN, USAN, JAN)
  • Hexamine Hippurate (IS)
  • Hippramine (IS)
  • R 657 (IS)
  • Methenamine Hippurate (PH: USP 38)
  • Hexamine Mandelate (OS: JAN)
  • Methenamine Mandelate (PH: USP 38)

Brand Names

  • Aknesol
    Naturprodukt, Hungary
  • Antihydral
    Iromedica, Switzerland; Robugen, Germany; Robugen, Hong Kong
  • Cystex (Methenamine and Salicylic Acid, + Benzoic Acid)
    Numark, United States
  • Dehydral
    Valeo, Canada
  • Heciramin
    Taiwan Biotech, Taiwan
  • Hexamine Nisshin
    Nisshin Pharmaceutical, Japan
  • Pedipur
    Prolab, Poland
  • Stoppot
    Parafarm, Poland
  • Urogesic Blue (Methenamine and Sodium, + Mehtylthioninium, + Hyoscyamine)
    Edwards, United States
  • Urosal (Methenamine and Salicylic Acid)
    Vis, Poland
  • Uryl (Methenamine and Sodium, + Methylthioninium, + Hyoscyamine)
    Portal, United States
  • Purinol
    Recordati, Turkey
  • Haiprex
    Meda, Denmark; Meda, Iceland
  • Hipeksal
    Takeda, Finland
  • Hippurin
    Recordati, Turkey
  • Hiprex
    Douglas, New Zealand; Meda, Finland; Meda, Norway; Meda, Sweden; Meda Pharmaceuticals, United Kingdom; More Pharma Corporation, Costa Rica; More Pharma Corporation, Dominican Republic; More Pharma Corporation, Guatemala; More Pharma Corporation, Honduras; More Pharma Corporation, Panama; More Pharma Corporation, El Salvador; sanofi-aventis, United States
  • Urex
    Vatring Pharmaceuticals, United States
  • Manuprin
    Recordati, Turkey
  • Mesulfin (Methenamine and Sulfamethizole (veterinary use))
    Zoetis, United States
  • Methenamine Mandelate Edenbridge
    Edenbridge Pharmaceuticals, United States
  • Reflux
    ACE, Netherlands
  • Urisedamine (Methenamine and Hyoscyamine)
    PolyMedica, United States
  • Uroquid-Acid (Methenamine and Sodium)
    Beach Products, United States
  • Utac (Methenamine and Sodium)
    Breckenridge Pharmaceutical, United States


BANBritish Approved Name
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.