I picked up a bottle over the weekend. Haven't made it yet. I don't see caffeine listed. Ingredients are water, natural and imitation flavors, caramel color, gum acacia, citric acid and ascorbic acid. Preserved with sodium benzoate.
My son is a Cherry Coke nut. I'm hoping to make something cola'ish with fewer calories and less bad on his teeth. If it comes out okay, we'll try adding cherry flavor to it.
Edited to say: not much bite after mixing it with water and sugar and trying it flat. Next time I'll add lemon or cherry or something. Didn't do much for me. Not sure if my son would drink it - but I'll let it carb up for 4-5 days then chill for a few days to see if it makes a difference.