It depends on how you define "narcotic" as this term is used
very loosely. If you mean it in the general sense as in "is it
psychoactive" or "a recreational drug" then most likely not.
4-chloro-amphetamine, or para-chloro-amphetamine is said to be
neurotoxic, so it's very unlikely to be used by humans.
See pubchem for links to further information;
http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=3127