It’s the top end of what gets prescribed for spinal nerve pain but not an uncommon dose. I was on the same. I spent the last year tapering off of it. I’ll note

It’s the top end of what gets prescribed for spinal nerve pain but not an uncommon dose. I was on the same. I spent the last year tapering off of it. I’ll note I did not have the same experience. It eliminated my nerve pain and I did feel mentally sluggish when I first started but that receded and I didn’t have memory issues while on it.