For heroin specifically, I looked into usage rates a few years ago, unfortunately I can't find my notes so no sources here (and it is really hard to find such d

For heroin specifically, I looked into usage rates a few years ago, unfortunately I can't find my notes so no sources here (and it is really hard to find such data). But from what I recall, usuage rates of heroin in the population in the late 60s and early 70s was comparable to recent years, then fell a bit and remained more or less stable through the early 2000s. The return of addicted GIs from Vietnam prompted the start of the war on drugs by Nixon [1] The big problem with heroin is what they are cutting it with. Prescription opioids, different ball of wax. [1] https://www.presidency.ucsb.edu/documents/special-message-the-congress-drug-abuse-prevention-and-control https://www.presidency.ucsb.edu/documents/special-message-th...