Klonopin 2mg is a prescribed medication that is typically used for treating panic attacks and seizures. Disorder. It’s part of the class of benzodiazepines. The drugs affect the nerves and brain to create a relaxing result. The main ingredient of Klonopin’s formulation is Clonazepam (2mg) is a medication that increases the effect of gamma-aminobutyric acid (GABA) within the brain. GABA is a chemical found in nature that regulates brain activity.