Klonopin 2 mg tablet is a powerful form of Klonopin ( Clonazepam ) that is generally used for panic disorder and seizure disorder. It is in a class of medications called benzodiazepines. Klonopin 2mg white pill works by decreasing the amount of an inhibitory neurotransmitter, GABA, in the central nervous system that calms brain activity, and helps to relieve anxiety and help seizures. Each K ROCHE 2 K Klonopin comes in round, white, and scored, due to its authenticity. The 2 milligram Klonopin is the highest oral dose available in tablet form and is used for patients with severe symptoms or those who do not respond to a lower dose.