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.

cisatracurium besylate
A non-depolarizing skeletal muscle relaxant of the benzylisoquinolinium class. Cisatracurium besylate acts as a competitive acetylcholine antagonist that binds to nicotinic receptors at the neuromuscular junction. Compared to other neuromuscular blocking agents, it is intermediate in its onset and duration of action. Cisatracurium besylate is used to maintain neuromuscular relaxation during major surgical procedures, primarily to facilitate endotracheal intubation. Cisatracurium besylate can cause bronchospasms, hypotension, and bradycardia. Check for active clinical trials using this agent. (NCI Thesaurus)

US brand name:Nimbex
Code name:51W89
Chemical structure:
  • (1R,2R)-2-(2-carboxyethyl)-1,2,3,4-tetrahydro-6,7-dimethoxy-2-methyl-1-veratrylisoquinolinium benzenesulfonate, pentamethylene ester
  • atracurium besylate 1R-cis,1R'-cis form