Unfortunately we seem to live in a day where the fox is guarding the hen house. The people making the drugs also do the studies and regulate. I am sure glad someone questioned leeches to remove blood for infection, frontal lobotomies for the mentally ill, heroin in cough medicine, mercury to heal wounds and bathing in / consuming your own urine in the name of good health. These were all medically endorsed best practices in the past 150 years. All could be classified as 'the cure is worse than the disease', in my opinion, although I am not a doctor. Haha.
Don't forget, not so long ago, doctors endorsed tobacco, Cocaine was acceptable in soft drinks and we are still trying to solve the opioid nightmare that is a direct result of similar studies where doctors told us Oxycontin was very safe.