I'm on 2700 mg Gabapentin. I have heavy duty nerve pain over most of my body. I think as others have said it's a really individual thing. For me it has reduced some of the nerve pain so it's worth it. It does affect me cognitively and I've had to lower the dose recently. Very few meds help me so I'm happy to accept a little help even if I may not be quite as alert as before. Good luck in your decision making ( :