According to Caribou Coffee, an 8-ounce cup of coffee has 135 milligrams of caffeine. An 8-ounce cup of decaf can have as much as 7 milligrams. A 12-ounce Coke has 45 milligrams.
Our friends at Wikipedia call Jon Swanson‘s stimulant of choice “a psychoactive stimulant drug“.
Enjoy some today! (I will.)