The FDA approved the use of OxyContin, including banning the original formulation when the patent was about to expire so the Sacklers could change a small detai

The FDA approved the use of OxyContin, including banning the original formulation when the patent was about to expire so the Sacklers could change a small detail and continue to profit from the massacre it created. Why was this the straw that broke the camels back? The FDA serves Big Pharma, not citizens.