Klonopin The brand-name drug clonazepam is the recommended generic drug for the treatment of seizures. Klonopin 1 mg reduces the abnormal and excessive activity of nerve cells and calms the brain. Klonopin 2 mg tablet contains croscarmellose sodium, magnesium stearate, colloidal silicon dioxide, microcrystalline cellulose, lactose monohydrate, and some additional colorants. It can be taken with or without food. Take this medicine at the same time each day.