As someone diagnosed with ADHD, I have to disagree regarding what you said about children being given amphetamines. In all of these cases, the child has been diagnosed with adhd. Adhd is not when someone is lazy and doesn’t want to work, it is a neurobiological condition in which the prefrontal cortex is smaller than neurotypical people. In addition, people with adhd chronically lack dopamine. For these reasons, amphetamines are the most effective treatment found thus far. And In regards to your point about prescribed amphetamines increasing the risk for addiction, it is actually the opposite that is true. Because of chronic understimulation, people with adhd are at much higher risk for addiction than neurotypicals. Stimulant prescriptions actually decrease the chances for addiction, as it allows their brains to be properly stimulated, thereby reducing the need to self-medicate with other drugs.
I certainly agree that misdiagnosing things like ADHD is a serious thing. And under capitalism, we shouldn’t be surprised that people are misdiagnosed. There is a pretty clear contradiction between the patient’s best interests and profit. So on the one hand you have things like the opioid crisis in the US, where an enormous amount of money was made though overprescribing and false diagnoses. And on the other hand, you have situations where drugs that have potential benefits are kept illegal, thus creating the need for higher police funding as well as allowing for mass incarceration (which is very profitable). So either way, the patient is not getting the care they deserve.