Could Buspar (buspirone) help with klonopin withdrawal?

No. Buspar (buspirone) and Klonopin are from two different classes of drugs. Buspar (buspirone) is not a benzodiazepine and does not cause tolerance or withdrawal. Klonopin is a benzodiazepine and does cause tolerance and withdrawal. Symptoms of withdrawal from Klonopin like increased anxiety, tremor, seizures, and possible death if severe would not be helped by buspar (buspirone). If taper off of Klonopin needed, use like medication.
Buspar (buspirone) It would not. Gradual tapering &/or detox. is needed with Benzodiazepines.