In 2009, a recipe titled "D Peppers Pepsin Bitters" found in an old ledger in Waco, Texas, is believed to the the first recipe for Dr. Pepper. A page in the book was titled W.B. Morrison & Co. Old Corner Drug Store, the same store in which Dr. Pepper was first served in 1885.

• 1889: "King of Beverages."
• 1920s: "Drink a Bite to Eat at 10, 2, and 4 o'clock."
• 1940s: "Good For Life."
• 1950s: "The Friendly Pepper Upper."
• 1960s: "America's Most Misunderstood Soft Drink."
• 1970s: "The Most Original Soft Drink Ever."
• 1977—1985: "I'm a Pepper, He's a Pepper, We're a Pepper.", "Be a Pepper.", "Wouldn't you like to Be a Pepper too?"
• 1986: "Out of the Ordinary. Like You."
• 1986: Diet Dr Pepper: "Out of the Ordinary for Out of the Ordinary Bodies."
• 1986—1997: "Hold Out For the Out of the Ordinary."
• 1991: "Just what the Doctor ordered."
• 1997: Australia: "It's Dr Pepper Flavour, Silly!"
• 1997: "Now's the Time. This is the Place. Dr Pepper Is The Taste."
• 2000: "Dr Pepper, It Makes the World Taste Better."
• 2000—Present: "Just What The Dr Ordered."
• 2002—Present: Europe: "Solves All Your Problems."
• 2003: United Kingdom: "Dr Pepper, to try it, is to love it"
• 2004—Present: United Kingdom: "Dr Pepper, what's the worst that could happen?"
• 2006: Austria, Denmark, Finland, Netherlands, and Poland: "Can You Handle The Taste?"
• 2006: "Authentic blend of 23 flavors."
• 2006: Europe: "The Dr knows the right touch."
• 2007: Latin America: "El Dr muy bueno"
• 2008: Europe: "What's the worst that can happen?"