Did Chopper mishandle the candy incident?
Checking the One Piece wiki, there seems to be some similarities between NHC10 and stimulant drugs like methanphetamines.
According to the &quot;Clinical Guidelines for Withdrawal Management and Treatment of Drug Dependence in Closed Settings.&quot; published by the World Health Organization, the basis for treatment of withdrawal syndrome in stimulants addiction is symptom-based.
The usual symptons are: agitation, irritability, depression, increased apetite and muscle aches, in the more severe cases they can develop psychosis. These seem compatible with the symptoms presented by the children.
In cases of severe agitation, much like the children presented, it may be necessary to sedate the patients when other behavioural management strategies prove unsuccessful.
The rest of the treatment relies on hydration and multivitamin supplements along with psychological therapy.
So, at least going by our current standards IRL, Chopper seems to have acted in good faith through proper medical treatment.
Source: Clinical Guidelines for Withdrawal Management and Treatment of Drug Dependence in Closed Settings