Klonopin is a potentially habit-forming benzodiazepine with some people becoming addicted by taking only the amount prescribed by their doctor. Klonopin is commonly prescribed to treat panic attacks and anxiety by blocking special receptors in the brain. In a May 28,2018 VICE article, 30% of opioid overdoses occurring between 1999 – 2016 involved the deadly mixture of benzodiazepines and opiates.