Learn about the side effects of clonazepam, from common to rare, for consumers and healthcare professionals. Clonazepam is a benzodiazepine (ben-zoe-dye-AZE-eh-peen). It is thought that benzodiazepines work by enhancing the activity of certain neurotransmitters in the brain. Clonazepam is used to treat certain seizure disorders (including absence seizures or Lennox-Gastaut syndrome) in adults and children. Clonazepam, sold under the brand name Klonopin among others, is a benzodiazepine medication used to prevent and treat anxiety disorders, seizures, and akathisia, [7] with some evidence supporting use in treatment of mania due to bipolar disorder. [12]. Find patient medical information for Clonazepam (Klonopin) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Clonazepam (Klonopin) is an prescription medication used to treat panic disorder, certain types of seizures, Lennox-Gastaut syndrome, and the short-term relief of anxiety. Clonazepam is used to treat seizures and panic disorder. Learn about side effects, drug interactions, dosages, warnings, and more. Clonazepam is used to control certain types of seizures. It is also used to treat panic attacks (sudden, unexpected attacks of extreme fear and worry about these attacks). Clonazepam is in a class of medications called benzodiazepines. It works by decreasing abnormal electrical activity in the brain. How should this medicine be used? What is this medication? CLONAZEPAM (kloe NA ze pam) treats seizures. It is also used to treat panic disorder. It works by helping your nervous system calm down. It belongs to a group of medications called benzodiazepines. Clonazepam is used alone or together with other medicines to treat certain seizure disorders (eg, Lennox-Gastaut syndrome, akinetic, myoclonic, and absence seizures). It is also used to treat panic disorder. Clonazepam is a benzodiazepine that works in the brain to prevent seizures. Find out how clonazepam treats epileptic seizures or fits, muscle spasms, panic disorder and restless legs syndrome, and how to take it. NHS medicines information on clonazepam – what it's used for, side effects, dosage and who can take it.