If you were a drug salesperson, imagine how successful you might be if the drug you were selling was very well known, backed up by massive advertising campaigns, had a reputation for effectiveness, and – frosting on the cake – tended to actually CAUSE the very symptoms your drug was supposed to treat.Īnd how much is a boatload? One out of every 20 people in the developed world is taking Nexium, Prilosec, Prevacid, or one of the other proton-pump inhibitors (PPI) that are supposed to curb heartburn.