SACRAMENTO, California - A common over-the-counter pain medication ingredient could soon be classified a carcinogen in California.
Acetaminophen, used in brands such as Tylenol, Excedrin, and Sudafed, could fall prey to a California state law.
The law says the state must warn people of any chemical known to cause cancer or reproductive toxicity and acetaminophen is considered a high-priority for such consideration.
Acetaminophen has been available over the counter since 1955.