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NCI Drug Dictionary

  

papaverine 
An opiate alkaloid isolated from the plant Papaver somniferum and produced synthetically. As a direct-acting smooth muscle relaxant, papaverine is not closely related to the other opium alkaloids in structure or pharmacological actions; its mechanism of action may involve the non-selective inhibition of phosphodiesterases and direct inhibition of calcium channels. This agent also exhibits antiviral activity against respiratory syncytial virus, cytomegalovirus, and HIV. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
Synonym:papaverine HCl
US brand names:Cerespan
Pavabid
Pavatym
Foreign brand names:Cerebid
Pavacap
Unicelles
Vasal
Abbreviation:PAP