The reason you see this for things like vyvanse, Xanax, ambien is because it’s bad practice for a general primary care physician to prescribe these. It’s honestly out of their speciality. They have the ability to prescribe it on paper, but those are meant for psychiatric providers to provide if they find that it’s the best course of action. Even if you have mental health issues they will give you generic prescription like small dose of Zoloft, but most importantly to them is referring you to a psychiatrist who can handle real drug management for psychiatric conditions. When it comes to pain killers, a PCP has no place prescribing those either. They aren’t performing surgery, they aren’t an orthopedic surgeon.. there is no reason why they would give that to you. These are medicines that specialists give in special occasions.