I had always thought 3600 - 4200 mg was the MAX, but recently heard that others were taking 5400 mg (and/or higher). When I heard that, I googled "Neurontin 5400mg) and got several hits.

The one thing I recall though (from prior forum conversations), is that people should not make a huge jump in dosage, up or down. If you opt to try this (and your doc should be more clued up on how to do this then we or any pharmacist is), I would touch base with him first to see if there are instructions for increasing the dosage slowly.

Cherie