Klonopin contains the active drug clonazepam. Klonopin comes as an oral tablet. The tablets are available in three strengths: 1 mg of Klonopin, and 2 mg of Klonopin.Klonopin (Clonazepam) is a long-acting benzodiazepine, an oral medication used to treat seizure and anxiety disorders. It is a prescription medication, but you can Buy Klonopin Online to relieve anxiety and seizures quickly. Klonopin increases the GABA activity that reduces and minimizes the brain’s abnormal activity.