You'd have a faster response in the pill identification section rather than here. That said, your pill is:
Gabapentin 300 mg
Generic
Neurontin
GABAPENTIN (Neurontin®) is effective in helping to control partial seizures (convulsions) in adults with epilepsy. Gabapentin is also used to help relieve certain types of nerve pain, and may be prescribed for other nervous system disorders.
I might not always be right, but I'm never wrong.