Buehler’s Buy Low Dr. B seems to only be available in 2L. This bottle was purchased at Big Lots in Harrisonburg, VA, but is probably available in other locations as well. Dr. B is so extremely sweet, that drinking it makes my eyes roll up to the top of my head. But there is a remedy to this! I’m calling it controlled dilution. What you have to do, is to pour Dr. B into a cup with some ice cubes, and slowly let the ice cubes melt. Every now and then, take a small taste to determine if the sweetness is to your liking. But a warning – do not dilute Dr. B directly by placing it under a faucet. You’ll just be asking for trouble. Dr. B earns a three a half dr pepper can rating.