Task: Answer Verification
Input (English): Question: Does magnesium sulfate potentiate morphine antinociception at the spinal level?
Answer: Magnesium sulfate potentiates morphine analgesia when coadministered intrathecally in normal rats, and in an animal model of mechanical allodynia after a surgical incision. These results suggest that intrathecal administration of magnesium sulfate may be a useful adjunct to spinal morphine analgesia.
Output (English): yes