Alot depends on the dose too.

Karen is already on 3 psyche drugs... chlorpromazine makes it
4. That is alot for a family doctor, IMO

When patients say things "like my skin feels like it will burst"...that may be misinterpreted by a poor doctor as psychotic ideation?

Most chain pharmacies have drug interaction software, and insurances will block some fills and require a pharmacist override.
Some pharmacists just override without much thought, I'm afraid to report. Some interaction screens give confidence intervals too, and if low they may pass without verification. There are many variables here in this case, and none of them in favor of Karen, IMO.

I really think the edema from the Neurontin is not serving you, Karen, well. I think you should discuss discontinuing it with your doctor. Your day to day comfort is important. All that fluid retention may also raise your blood pressure.