Ziconotide acts by blocking ?: (A) Voltage gated Na channel, (B) Voltage gated Ca channel, (C) Ligand gated Na channel, (D) Ligand gated Ca channel
Answer is B. Ans. is'b'i.e., Voltage gated Ca channel(Ref: Essential of pain medicine by HonorioBenmn p. 4581)Ziconotide:Ziconotide (SNX-111 ; Prialt) is an atypical analgesic agent for the amelioration of severe and chronic pain.Acts as a selective N-type voltage-gated calcium channel blocker.