Dr Thunder is a brand of cola produced for Wal-Mart

Wal-Mart

Wal-Mart Stores, Inc. , branded as Walmart since 2008 and Wal-Mart before then, is an American public multinational corporation that runs chains of large discount department stores and warehouse stores. The company is the world's 18th largest public corporation, according to the Forbes Global 2000...

 stores (and Asda

Asda

Asda Stores Ltd is a British supermarket chain which retails food, clothing, general merchandise, toys and financial services. It also has a mobile telephone network, , Asda Mobile...

 stores in the UK). It is canned by Cott

Cott

The Cott Corporation is a leading supplier of private label carbonated soft drinks distributing to Canada, the United States, Mexico, the United Kingdom, and Europe. In addition to producing many private-label beverages for retailers, Cott also has a large and growing portfolio of its own brands...

 at facilities located throughout North America. In 2009, Wal-Mart notified Cott that it would no longer be the exclusive supplier of store-brand sodas for Wal-Mart stores.

History

Dr Thunder was originally called "Southern Lightning," but the name was changed to reflect its mild similarities to Dr Pepper

Dr Pepper

Dr Pepper is a soft drink, marketed as having a unique flavor. The drink was created in the 1880s by Charles Alderton of Waco, Texas and first served around 1885. Dr Pepper was first nationally marketed in the United States in 1904 and is now also sold in Europe, Asia, Canada, Mexico, Australia ...

. The label of Dr Thunder has recently been redesigned to say that "You've never been deep, until you've been Dr Thunder deep."