Logic Firm is a hihgly palatable pharmaceutical grade formulation that helps to support intestinal function. It comes in an easy to give syringe ensuring you give your dog the correct amount either directly into the mouth or on top of food. It contains 4 key ingredients to help quickly restore normal digestive function and firm stools. It contains: Montmorillonite: Coats and supports the intestinal lining. Na+ Mg2+ and K+ ions: Help to restore any electrolytes lost. Dextrose: Provides an energy source for the small intestine. Prebiotics (FOS fructo-oligosaccharides): Help to restore the normal bacterial flora.