(If true as reported that...) Given that they knew that their formula didn't last for 12 hours, and their response to each doctor was "increase the dosage and

(If true as reported that...) Given that they knew that their formula didn't last for 12 hours, and their response to each doctor was "increase the dosage and keep the 12 hour interval" which of course means a greater risk of addiction, I'd go with unalloyed evil.