They are two totally different types of drugs,
Paxil (Paroxetine) is a Selective Seratonin Reuptake Inhibitor, sometimes depression and anxiety can be caused by not having enough Seratonin (the happy hormone)in the brain, Paxil prevents your brain from absorbing the amount you do have, so it stays in their longer and helps your mood and anxiety.
Neurontin is
Gabapentin, originally approved for Epileptic Seizures, then it was found to work on neuropathic pain for people who had Herpes Zoster (Shingles.)It is sometimes effective for people when other mental health drugs have not worked and it has relatively few side effects.
"DRUG CLASS AND MECHANISM: Gabapentin is in the class of drugs called anticonvulsants because they are used to treat seizures (epilepsy) and herpes zoster (shingles). Gabapentin is related to the brain chemical gamma aminobutyric acid (GABA) but exactly how it works is unknown."
So it works on a different brain chemical than Paxil.
My husband takes Paxil for anxiety disorders and major depression, it works great for him. I use Neurontin for pain due to a spinal condition.
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