A national Medication Take Back Day is coming up Saturday.  Putnam County Department of Health, Sheriff's Department and Putnam Communities that Care Coalition are co-hosting a collection event at Putnam Hospital Center Wagner Cancer Pavilion in Carmel from 10am to 2pm.  People can dispose of expired, no longer needed prescriptions, over the counter and pet medication. Officials say this will help keep them out of waterways and landfills.  Lancets, syringes and sharps will be accepted.  People should removal personal information and keep medication in original packages if possible.