The latter has the effect of an increase in reaction times, they cause a feeling of alertness and of being always awake, and even produce euphoria, thus a greater tolerance to pain. Technically, stimulants favor and increase the release of catecholamines in the brain, that is, substances such as norepinephrine, adrenaline, and dopamine that are transported in the bloodstream and neural networks so that we can respond to stressful situations. It is approved for production and marketing in the United States since 2001 under the name ADDERALL TX, in tablets with a concentration of 5, 10, 15, 20, 25, or 30 mg. Not only that, but in recent years its recreational use and for purposes such as improving school, physical or work performance has increased significantly. In other words, Adderall is a medically prescribed central nervous system stimulant, especially for attention deficit disorder (non-hyperactivity), but is also used, for example, to treat narcolepsy.