Sigmund Freud, after reading 14 scientific studies claiming cocaine was a safe and effective treatment for morphine addiction, started injecting a gram of liquid cocaine on the daily, which he did for more than a decade. He was also paid by two large pharmaceutical companies to endorse their brand of cocaine.

The original scientific studies claiming the health benefits of cocaine were in a journal owned by ParkeDavis, the largest pharmaceutical company in the world. Who also manufactured it.