Preservative parabens contained in commercial naloxone preparations cause a dose-dependent relaxation of human pial cortical arteries.
D002536:Cerebral Arteries / Q000187:drug effects*; D006801:Humans; D009270:Naloxone / Q000494:pharmacology*; D014666:Vasomotor System / Q000187:drug effects*
D009270:Naloxone