McGill University in Montreal appears to quote the wiki verbatim here: https://www.mcgill.ca/oss/article/did-you-know-history/7-was-originally-antidepressant h

McGill University in Montreal appears to quote the wiki verbatim here: https://www.mcgill.ca/oss/article/did-you-know-history/7-was-originally-antidepressant https://www.mcgill.ca/oss/article/did-you-know-history/7-was... Gizmodo also has an article on this, but without sources: https://gizmodo.com/7-up-used-to-contain-lithium-1634862072 https://gizmodo.com/7-up-used-to-contain-lithium-1634862072 This page, linked from Gizmodo, has a picture of what appears to be an antique label: https://www.neatorama.com/2012/10/28/What-is-the-7-in-7UP/ https://www.neatorama.com/2012/10/28/What-is-the-7-in-7UP/