ALL prescription drugs. You can't just go out and buy any of these unless your doctor writes a prescription. It isn't like buying toothpaste, laundry detergent or even a car. I would guess doctors waste a LOT of their time explaining why some drug one of their patients saw on TV isn't right for them.
Seems to me it would be fine to advertise on some medical/professional channel viewed by those involved in health care to create awareness. General ads on TV to the public makes NO sense to me.