Hi all. I know that alot of people here are giving their children melatonin. I have done some research on this since I used to use it a lot to help me sleep a few years ago. It could possibly be related to a disease called EMS, eosinophilia myalgia syndrome.. You can read more about it at this link
http://pubs.acs.org/cgi-bin/abstract.cgi/crtoec/1998/11/i03/ abs/tx970202h.html
You can also read more on this by searching the internet.. Just wanted to post this so everyone can be aware.. Thanks.