FDA says no to alcohol and caffeine. You can still drink rum and Coke, but pre-mixed, nope unapproved/adulterated/etc. The usual marketed to/need to protect the youth...
Caffeinated Alcoholic Drinks Are Dead. (Long Live … ) - Health Blog - WSJ
Letter from FDA
Caffeinated Alcoholic Beverages Sample Letter # 1
Caffeinated Alcoholic Drinks Are Dead. (Long Live … ) - Health Blog - WSJ
Letter from FDA
Caffeinated Alcoholic Beverages Sample Letter # 1