Right. Those are very extreme diagnoses. Medication is often required. What this book speaks to is the problem with overprescription as applied to the average person, and offers many solutions.
Overprescription? It is so damned hard to get stimulant medications (patients don't even dare ask for fear of being labeled "drug seeking") that even people who need them badly have a hard time getting them.
So, no, it does not seem like a "a pharmaceutical spiral brought on by a sick process", whatever the blazes that means.
When you have those stuff, you need to take meds AND join the gardening club.
You can't go manic at the gardening club.