I've mixed up the vitamin/electrolyte powder for my chick's drinking water, but I threw out the package (dumb me). I can't remember if it needs to be refridgerated or if it even says to do it. I can't remember what brand it is either, but it's a green package. Just to be cautious I have been putting it there, but was just curious if it was necessary. I seem to remember that pedialyte needs to be kept cold and has a very short shelf life once opened.