There is a drink in Japan called Pocari Sweat, great in mumser or when you are sick, gives you back ions(?), minerals(?, sorry for my English) and lots of fluids when you are dehydrated. This has also a blue lable and I think it is meant to be similar to Pocari, so it is Pet Sweat, and at the bottom it says it is to get back the fluid you lost, so it is for your dehydrated pets ^-^hope this helps explain