Dr. Sackler - produced and marketed deadly opioid and now profiting from producing another opioid to treat the original addiction.
https://articles.mercola.com/sites/articles/archive/2018/09/26/purdue-pharma-owns-generic-opioids.aspx?utm_source=dnl&utm_medium=email&utm_content=art1&utm_campaign=20180926Z1_B_UCM&et_cid=DM241146&et_rid=429728687
No guilt, no shame, just sociopathic greed.
(buprenorphine is also used as pain control in veterinary medicine)