There is no reason to switch if the Neurontin is successful in managing your pain, symptoms, & discomfort. I was on it for 7 years, along with Tramadol.
Only when I became tolerant of it & it was not working well for me, did I switch.
When Neurontin is taken in the generic form, Gabapentin- it is much cheaper than using Lyrica.
As far as the 'list', I thought both were on it, at least it used to be that way. Things could have changed.