Juices are supposed to contain actual juice, almost exclusively. The juice will usually have been macerated within an inch of its life, freeze dried, shipped across the world in a leaky tanker, warmed up and reconstituted before being chilled again. So it's not fresh juice. But it's still juice.
Fruit drinks can apparently contain anything at all including colours, flavours, artificial sweeteners, mayonnaise, glue, and rusty old machine tools. I suspect there's a statutory limit on how little juice manufacturers can get away with. Whatever that limit is, any 'fruit drink' will be right on the line.
Cranberries are supposed to help with prostate cancer. Although that particular research was sponsored by the national cranberry association - or whatever the official title is - so it may be best to take it with a pinch of something sour or bitter.
Those fruit "drinks" made of juice and sugar and water and whatever are called "nectars" in France.
LOL... ~"When an inner situation is not made conscious, it appears outside as fate." Karl Jung~