Liquid lithium syrup is still available (with a prescription?). I purchased some, but without sugar it doesn't taste much like sevenUp when combined with soda water. The first time I ever had it (in a mental ward) it really tasted like sevenUp, but I think that was set and setting more than anything. I love lithium (especially in comparison to newer mood stabilizers), but I do have to track my liver function with it. I generally just use pills, but in other countries the liquid is more popular. This is all for bipolar, not for recreation. I'll have to check out that book from the old library.