Gabapentin dose range is huge, like 100-3600 mg a day, depending on how it’s tolerated. It’s always best to start out low and see how you respond. It can be gradually increased as needed and sometimes the side effects of drowsiness get better with time. It’s also common to take a lower dose during the day so you can function better and higher dose at bedtime to help you sleep. Common to be on 3-4 times a day for sustained pain control. Your doctor should be helping you figure this out so you aren’t chasing the pain with mini dose additions all day. A regular dose schedule should work better. Good luck and I hope it works well for you!