Let me start by saying I'm rarely affected by side affects and I'm not allergic to anything. My doc started me on 300 mg of gabapentin and it made me loopy and sleepy but through titration I am now up to 3,000 mg a day. Like I said I'm one of the lucky ones that has a strong constitution when it comes to meds but maybe if he could try you on the lowest possible dose and take it from there? I hope this helps