If you are saying "numb the nerves" as Lidocaine deadens the teeth for the dentist then, no.
Neurontin (gabapentin) is not an anesthetic agent. It is used extensively as a pain medication in settings of neuropathy or radiculopathy as you may have but the exact way it controls pain is unknown. It may work at the level of the brain, spinal cord, or both in order to do what it does.
Would you like to video or text chat with me?