They were generally unaware of street names of common recreational drugs, a knowledge that can be critical in diagnosis, and the prescribing an antidote or remedy. Very often the information given is from people who are delirious, feel threatened, concerned about being responsible for an overdose, or hysterical because of the fear someone they know well may not survive. They can find it hard to trust a doctor without a clue.

This is a good point. I have witnessed bad doctors not realizing what was what with street drugs in the ER. People die do this.