not exactly - they are amphetamine tablets.
It's not-at-all common, though. Much less than "millions of dollars" of it being sold.
It's approved in the US for obesity as well as attention disorders. Schedule II, just like common painkillers (the non toxic ones anyways; adding a liver toxin moves painkillers to lower Schedule III).
Patient: "I can't stay awake, I can't concentrate and even though my diet is reasonable and I get exercise I can't drop weight."
Doctor: "Do you have good dental insurance?"
Patient: "Um, yes. Why do you ask."
Doctor. "What I'm about to write you a prescription for tends to cause dental problems as a side effect"
Just like if you start taking a diuretic you should increase water intake, other medicines require other steps.