Is it true that is mr pibb the same as pibb xtra based on the following text?

Pibb Xtra, formerly called Mr. Pibb (sometimes styled as Mr. PiBB), is a soft drink marketed by The Coca-Cola Company. As of 2012, it is sold only in the United States, except in areas where Dr Pepper is distributed by the local Coca-Cola bottler. It is available in Canada through Coca-Cola Freestyle machines.
yes