NCI Drug Dictionary

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The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

A nucleoside antibiotic isolated from the bacterium Streptomyces antibioticus with antineoplastic activity. Vidarabine inhibits DNA polymerase, resulting in the inhibition of DNA replication in tumor cells. Check for active clinical trials using this agent. (NCI Thesaurus)

Synonym:adenine arabinoside
Beta Ara-A
US brand name:Vira-A
Foreign brand name:Arasena-A
Code name:CI-673
Chemical structure:
  • 9-Beta-D-arabinofuranosyl-9H-purine-6-amine Monohydrate
  • 9-Beta-D-arabinofuranosyladenine Monohydrate