Cox Vet Lab High Endurance Paste is a great solution for dehydration in horses. It contains vitamins, minerals, electrolytes, and amino acids that help in preventing dehydration. It replaces the nutrients lost during excessive physical activity like exercising or because of too much heat. Cox Vet Lab High Endurance Paste is specially formulated for horses including those in training or competing. One tube can provide 2 doses. Comes in a cherry flavor that is highly palatable to horses, making it easy to administer. For better results, it is suggested to administer to horses prior or after an event.