Earlier quoted context omitted.
They already put substances in food to make us crave them more. It's not a huge leap from there.
It is a huge leap from the status quo to intentionally disrupting the effects of prescription drugs. One is unscrupulous and the other is blatantly illegal.
It’s helpful to remember that this is the same corporate landscape where (in the US) insurance companies can decline prescriptions in order to reduce their own costs.