BehindTheMedspeak: 7 Up contained lithium from its inception in 1929 until 1948

Who knew?

From Wikipedia:

The product, originally named "Bib-Label Lithiated Lemon-Lime Soda", was launched two weeks before the Wall Street Crash of 1929.

It contained lithium citrate, a mood-stabilizing drug, until 1948.

It was one of a number of patent medicine products popular in the late-19th and early-20th centuries.

Its name was later shortened to "7 Up Lithiated Lemon Soda" before being further shortened to just "7 Up" by 1936.