http://www.smartgroups.com/message/readmessage.cfm?gid=1423922&messageid=3340 As far as I know melatonin does not lower blood glucose levels. I have not seen that with the implants or with the tablets. If you are seeing signs of low blood glucose then have his blood check, but remember insulinoma is a common problem also. Hope that helps, Jerry Murray, DVM [Posted in FML issue 4067]