Possible Clues:

• Do get Desmond back if he's been given his medicine
• Gave an antidote to
• Gave two aspirin, say
• Do get Desmond back now that he's had his medicine
• Drugged, but oddly steady after party
• Gave pills, e.g
• Do get the boy back if he's had his medicine
• Do get the boy back for his medicine
• Given medicine, slept half-heartedly
• Given medicine, bedded down half-heartedly