Clonazepam (Klonopin^®), a part of a group of medications called benzodiazepines, is used to treat certain types of seizures and panic disorder. The medication works by affecting a certain brain chemical, which produces a naturally calming effect. As a result, clonazepam can have various effects on the body, such as reducing anxiety, causing sleepiness, and relaxing the muscles. Clonazepam is not suitable for everyone. A few of the conditions you should let your healthcare provider know about before taking the medication include depression, liver or kidney disease, or a history of alcohol or drug abuse.