TRENTON, N.J. — Johnson & Johnson said Thursday that it’s reducing the maximum daily dose of its Extra Strength Tylenol pain reliever to lower risk of accidental overdose from acetaminophen, its active ingredient and the top cause of liver failure. The company’s McNeil Consumer Healthcare Division said the change affects Extra Strength Tylenol sold in the U.S. — one of many products in short supply in stores due to a string of recalls.

Starting sometime this fall, labels on Extra Strength Tylenol packages will now list the maximum daily dose as six pills, or a total of 3,000 milligrams, down from eight pills a day, or 4,000 milligrams. Beginning next year, McNeil will also reduce the maximum daily dose for its Regular Strength Tylenol and other adult pain relievers containing acetaminophen, the most widely used pain killer in the country.