There is disagreement as to whether polytherapy or monotherapy is better. The precise drugs used will depend on the types of fits for a particular child. Typical drugs used include valproic acid, clonazepam, vigabatrin, felbamate and topiramate. ACTH can be used successfully for short periods, but the child will usually regress afterwards. The ketogenic diet appears to work well with some children, although there are no useful clinical studies.