Temazepam is a sedative drug that is used to treat insomnia and anxiety. There are several synonyms for temazepam, including Restoril, Normison, Euhypnos, Nuctalon, and Temaze. Restoril is the most common synonym for temazepam and is widely prescribed for insomnia. Normison, on the other hand, is a brand name for temazepam that is used in several countries, including Australia and New Zealand. Euhypnos and Nuctalon are other brand names for temazepam that are used in Europe and Asia, respectively. Both temazepam and its synonyms belong to the class of drugs known as benzodiazepines, which are used to treat anxiety and sleep disorders.