Perfect Prep EQ Prime takes the fresh out and leaves the movement in for a dynamic performance. Use 90 minutes before increased stress. Effects begin within 1 hour and last up to 6 hours. Easy-to-handle 60cc oral syringe contains 1 to 2 doses of targeted active ingredients. Formulated to flow smoothly, taste great and begin working quickly. Great tasting for even the pickiest horse! Works well alone or as part of the Perfect Prep EQ Calming System. Contains no prohibited substances.