Tasimelteon, also known as Hetlioz, is a medication that is used to treat non-24-hour sleep-wake disorder in both sighted and blind individuals. This condition can cause disrupted sleep patterns and fatigue, making it difficult to function during the day. While there are currently no direct synonyms for tasimelteon, there are other treatment options available to manage the symptoms of non-24-hour sleep-wake disorder. These may include light therapy, melatonin supplements, and behavioral therapies such as maintaining a consistent sleep schedule and practicing good sleep hygiene. It is important for individuals with this condition to work with their healthcare providers to find the best treatment options for their unique needs.