Rivotril 2mg has clonazepam in it as one of the ingredients active in. Clonazepam belongs to the group known as benzodiazepines. The medicines affect the nervous system and brain. They can help reduce excessive electrical activity within the brain. The 2mg strength is among of the stronger tablet strengths. It is often the initial dose that doctors will start with. A lot of people begin with low doses before gradually moving to higher doses if they are required. Rivotril 2mg tablets are generally consumed by mouth along with water.