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Obidoxime Chloride



CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Antidote: Cholinesterase reactivator

Chemical Name

Pyridinium, 1,1'-[oxybis(metylene)]bis[4-[(hydroxyimino)metyl]-, dichloride

Foreign Names

  • Obidoximi chloridum (Latin)
  • Obidoxim chlorid (German)
  • Chlorure d'obidoxime (French)
  • Cloruro de obidoxima (Spanish)

Generic Names

  • Obidoxime Chloride (OS: USAN)
  • LH-6 (IS: Merck)
  • Lu H 6 (IS)
  • Obidoximum chloratum (IS)

Brand Names

  • Atox II ComboPen (Obidoxime Chloride and Atropin)
    Armeeapotheke, Switzerland
  • Toxogonin
    Merck, Switzerland; Merck, Chile; Merck, Netherlands; Merck KGaA, Romania; Merck Serono, Germany; Merck Serono, South Africa

International Drug Name Search


ISInofficial Synonym
OSOfficial Synonym
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name

Click for further information on drug naming conventions and 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.