Animalife Vetroflex Senior Liquid. Animalife Vetroflex Senior Liquid is an apple flavoured 100% natural supplement that provides joint, respiratory, digestive, hoof and immune support. The older horse can benefit from extra nutritional support provided by the Vetroflex Senior Liquid supplement and it will help to maintain performance and quality of life. Targeted amino acids and antioxidants help maintain healthy joint cartilage and connective tissues and a strong immune system. The respiratory support is provided by a wide range of antioxidants particularly Vitamin C. Read more… Digestive support is reinforced with prebiotics to boost and replenish any drop in the horses own production caused by a reduced fibre intake due to poor dentition. Biotin, Methionine and Zinc offer hoof support for repair. Free from banned substances. Feeding Instructions The daily rate is best split across two feeds. Maintenance Daily Rate Small Horse weighing less than 400kg â€" 50ml Medium Horse weighing 400-600kg â€" 60ml Large Horse weighing over 600kg â€" 80ml