
Continuity mistake: After Wendy walks the plank and leaps, when we see Peter has saved her, her head is at Peter's right side as he flies off with her in his arms. But in the next shot, Wendy is being carried by Peter the opposite way, with her head now at Peter's left side. (01:07:10)
Answer: They never officially confirmed; but it was likely castor oil or morphine. Both were used around this time period as a common "medicine" for children.
Cocaine, heroin, and alcohol-based elixirs were also commonplace at that time and considered "safe and effective" for children.
raywest ★