My GFR is 43 & creatinine is 1.76. I have Neuropathy pretty bad so my doc prescribed me Gabapentin/Neurontin. We're not sure what is causing the Neuropathy yet, it's NOT diabetes though.
I was to take 300mg of Gabapentin 3X a day, at first it worked. Then my symptoms reoccurred and quickly got a lot worse. My doc uped my dose to 600mg 4X a day. It not only DIDN'T work, it landed me in the hospital. My complaints were: malaise, confusion (dizziness, nausea, eye reattaching & electrical shock at times.
The reason for theses symptoms was Gabapentin TOXICITY ! Apparently, since my GFR was 43, my kidney couldn't clear that amout of the drug out of my system. I found out that Gabapentin is extremely hard on your kidneys so why would a doctor prescribe this medication to a patient who is a Stage 3B !
DON'T TRUST DOCTORS ! ASK QUESTIONS !