What is "ziconotide"

n. An analgesic drug used for the amelioration of severe and chronic pain.

Ziconotide (SNX-111; Prialt) is an atypical analgesic agent for the amelioration of severe and chronic pain. Derived from Conus magus (Cone Snail), it is the synthetic form of an ω- conotoxin peptide.

In December 2004 the Food and Drug Administration approved ziconotide when delivered as an infusion into the cerebrospinal fluid using an intrathecal pump system.