I shall refute your 3 points succinctly:

AP vs DP, who cares?

Did they have Oxy pills in the 1880s? Didn't think so. 

Doctors can't police themselves because they are on the payroll of large pharma. Doctors in the USA literally get paid huge sums of money by large pharma to read "research papers" which are really just ads that large pharma puts out. I know this because the doctor in the small town I grew up in (less than 10k people) got outed for making about $70k a year as a "consultant" for large pharma...reading this BS research papers.