(Ramard) Total Respiratory and Endurance Paste helps maximize oxygen capacity and enhance performance. Combats seasonal allergies, stable cough and heaves. Assists the breakup of mucus and helps reduce airway swelling. Total Respiratory and Endurance acts as an anti-bacterial, anti-viral and anti-fungal to combat issues that can lead to respiratory distress. Horses will experience enhanced performance and race times due to its increase in oxygen carrying capacity in the blood. Total Respiratory and Endurance is effective within 1 hour and remains effective for 24 hours. Safe for show and race use. Give 1 syringe, as needed.