IANAD but I think it means no food in your stomach when you take your meds. Since it can take a while to move food through your digestive system I would think that no food in the past 4-6 hours would constitute an empty stomach.
The population within the borough limits was 10,568 at the 2010 census. When combined with the surrounding Washington and Quincy Townships, the population of greater Waynesboro is 28,285. The Waynesboro Area School District serves a resident population of 32,386, according to 2010 federal census data.
Wayne County Mayor 714 Wayne Street Waynesboro MS 39367 39.2 miles from Moselle 601-735-4874 Mendenhall Mayor 172 West Maud Avenue Mendenhall MS 39114 47.1 miles from Moselle 601-847-1212 Poplarville Mayor 200 Mississippi 26 Poplarville MS 39470 50.4 miles from Moselle 601-795-8161