Hi hope you’re well. According to the drug interactions on drugs.com it’s shows moderate risks because both are sedating. However my doctor said it’s relatively safe. I had suffered from anxiety so calming down was the end goal. (.5mg of Kolonipin and 300mg of Gabapentin.) Kolonipin is habit forming; the only option would be to tapper off slowly. This particular benzodiazepine has a long half life so addiction is less than Xanax or other stronger versions. However, it’s still a possibility especially if the effects aren’t the same after awhile. It’s good your doctor prescribed something else instead of increasing the dose because that’s would cause higher dependency. If that’s not something you’re interested in doing I understand. I take klonopin as well and it helps. I have taken gabapentin as well. Together a few times. Gabapentin is for nerve pain by accessing the receptors in the brain and klonopin increases gaba in the brain. If you’re taking it at bedtime it should be safer, but just keep in mind it has sedating effects so be careful and monitor any symptoms the first few days. Make sure to eat healthy and drink lots of water.

FOUND THIS: Using clonazePAM together with gabapentin may increase side effects such as dizziness, drowsiness, confusion, and difficulty concentrating. Some people, especially the elderly, may also experience impairment in thinking, judgment, and motor coordination.
Drugs.com