However, Neurontin is a relatively safe and effective
treatment for pain. Many patients with painful neruopathy have used
Neurontin for many years. Typically the side-effects include somnolence, dizziness, and imbalance. Since you have been using Neurontin for 9 years, there does not seem to be a problem continuing it, even at a slightly increased dose.
Also, Neurontin is not known to be triggering/escalating Alzheimer's disease.
Best..