Sambucol is a brand of elderberry-based cold and flu remedies that has been around since 1973. It is the original elderberry brand and is owned by PharmaCare Laboratories. Sambucol is made with 100% elderberry extract and is available in a variety of forms, including syrup, tablets, and capsules. With essential nutrients such as vitamin C and zinc, it is a popular choice for kids and adults looking for a natural way to relieve the symptoms of colds and flu.