What is Klonopin and What cause Klonopin Addiction? Klonopin is a brand name for the prescription drug known as clonazepam, which belongs to the class of drugs named benzodiazepines. This drug is prescribed to give a calming effect to the nervous system. It is recognised to treat health concerns such as Panic disorder, Anxiety, and Isomania. ​Doctors suggest the drug for both short-term and long-term use, looking at the individual's condition. Klonopin is used for a longer time, which must be for at least 4 weeks. If it uses more than the period could increase the tolerance and dependence on the medication. Recovery from Klonopin addiction need a klonopin addiction treatment centre.