What Happens If You Accidentally Take 2000 Mg Of Tylenol?

What Happens If You Accidentally Take 2000 Mg Of Tylenol? Although acetaminophen is a safe and effective medicine, taking too much of it, even if it’s accidentally, can lead to acetaminophen poisoning, which can cause liver damage and/or liver failure. Is 2000 mg of Tylenol too much at once? Tylenol is relatively safe when you