Hello, I had gone through your question and understand your concerns. Gabapentin does not have the same indication as Klonopin, so it is not a good alternative. Gabapentin is an anticonvulsant, antiepileptic drug, and also used for nerve pain. I understand your concerns about the side effects of long term usage of Klonopin, but before you interrupt the medication you have to consult with the doctor who prescribed him, because onset interruption also has some bad effects. Always if you want to change the medication, you have to look on the same group of medication, for example in this case: anti anxiety drugs. Anyway as we are talking about prescription drugs and I think it is better to meet his doctor and he can switch to another one. I wish my answer was helpful! Best regards, Dr Eniola