Dr. Gulpster is made by Southland (Classic Selection). Southland products are found at 7-11 stores, but Dr. Gulpster has yet to be spotted in the South. This may not be such a bad thing, because Dr. Gulpster is not the kind of drink that you want to have very much of. Very bland and hard to swallow, Dr. Gulpster earns a one Dr Pepper can rating.