Right drug is missing.
From my readings, all medication errors have to be reported not only to the healthcare facility but also disclosed to the patient. Should something adverse happen to the patient then the patient would be justified to file a lawsuit against the healthcare facility as well as the individual administering the medication.
Sleeping
sleeping isn’t a cool down excersise, because you should still be physically active and sleeping isn’t one of them.
Some questions Jim should ask to protect his safety:
Who else is coming?
Will there be parental supervision? (If he's under 18)
Will there be any alcohol or drugs?
Where are they meeting?