A drug that is used to treat some mental illnesses, lithium citrate relaxes the user and brings them down from their manic episodes. With this use in mind, it may intrigue you to know that this drug was widely consumed in the 1930s and 1940s. However, the users may not have known about it. Released in 1929, shortly before the Wall Street crash, 7 Up was originally the pricier of the lemon-lime sodas. Known as “Bib-Label Lithiated Lemon-Lime Soda” when released, the name didn’t quite catch on. So, to make it simpler to remember, they renamed it 7 Up in 1936. The soft drink continued to contain lithium citrate until 1950.