A central nervous system stimulant used to treat narcolepsy, shift work sleep disorder, and obstructive sleep apnea, modafinil is also marketed under the name Modalert 200. It is unclear how effectively modafinil works to improve mood and productivity, despite the fact that it has been taken non-medically as a "smart drug" by transhumanists, office workers, soldiers, and students. When it comes to modafinil, the Therapeutic Goods Administration of Australia actually advises against using it as a "smart drug" because of the possibility of major adverse effects including addiction, sleeplessness, and anxiety. However, there is little evidence that modafinil or other stimulants enhance overall mood or quality of life, despite its ability to lessen tiredness and drowsiness.
