Glutathione or L Glutathione: What is Better for Skin? The parent compounds of acetaminophen (US market in 1955 in the US as Tylenol and other products) were first discovered in 1886 (acetanilide) and 1887 (phenacetin). These were the earliest synthetic fever Dr. Tylenol (acetaminophen) is not something I use or give my children or recommend for pregnant women. It depletes glutathione, an extremely important antioxidant and detoxification agent in the human body. Tylenol And Glutathione Invigor Medical