Leconotide
Leconotide (INN) (code names CNSB004, AM336), also known as ω-conotoxin CVID, is an ω-conotoxin peptide isolated from the venom of Conus catus which is under investigation as an analgesic drug for the treatment of pain conditions.
It acts as an N-type voltage-gated calcium channel (Cav2.2) blocker, and is highly selective for this channel over the related P/Q-type voltage-gated calcium channel (Cav2.1).