Hi John,
Yes, Meletonin does come in a liquid, as a matter of fact it's orange
flavored.  The only place I've been able to find it is in a Health Food
store that carries herbs.  Call one in your area and see if they carry
it, if they don't most will order it for you.
 
Debi and the
Fuzzy Loving Ferret Rescue
[Posted in FML issue 5173]