My mother was admitted to the hospital for low back compression fractures. The physician proceeded to prescribe neurontin for nerve pain without discussing the medication and side effects with the family members first. The next day my mother behavior changed: confussed, hallucinating and having a hard time talking. After 3 days the physician finally discontined the medication. She appears to be doing somewhat better but stll confused at times. When taking neurontin can you have permanent side effects?