Drug advertising -> Drug Sales -> Drug Profits -> Profit for Drug Company -> More R&D For Next Drug If all drug advertising went to 0, it would not significant

Drug advertising -> Drug Sales -> Drug Profits -> Profit for Drug Company -> More R&D For Next Drug If all drug advertising went to 0, it would not significantly impact drug prices in the US. It might in fact increase prices as there would be less users per drug. (Which of course may be a better result for society, but I digress)