But they do call it Dr Pepper, TX!
e:
What makes us unique? Besides being the oldest Dr Pepper bottler in the world, Dublin Dr Pepper also has the distinction of being bottled with Imperial Pure Cane Sugar - the original Dr Pepper formula.
Dublin, Texas—also known officially as Dr Pepper, Texas for one week each June during our annual birthday celebration—became the site for the world’s oldest Dr Pepper bottling plant in 1891, just six years after the drink's invention in nearby Waco.
They sell it at stores around here even now but it's too expensive to bother purchasing, this far away (a few hours) from the town.