Rivotril (clonazepam) is a powerful benzodiazepine medication prescribed in the UK for the management of epilepsy, severe anxiety disorders, panic attacks, and muscle-related conditions. As a central nervous system depressant, Clonazepam enhances the calming effects of gamma-aminobutyric acid (GABA) in the brain, helping to stabilize abnormal electrical activity, reduce overactive muscle tension, and relieve sudden spikes of fear or agitation.