I have used a cough syrup that is based on loquat for most of my life. I'm not 100% sure if the fruit or the leaves are used in the commercially available syrup but I know some homemade recipes that use the fruit. Very useful for itchy throat/cough especially mixed in hot water and drunk. It will grow very easily if you save and plant a stone from the fruit and it grows into a very nice leaved small tree.