ACETAMINOPHEN TABLET [BRYANT RANCH PREPACK] with any other drug containing acetaminophen (prescription or non-prescription). If you are not sure whether a drug contains acetaminophen, ask a doctor or pharmacist. if the user has ever had an allergic reaction to this product or any of its ingredients. pain gets worse or lasts more than 10 days (for adults) or 5 days (for children) fever gets worse or lasts more than 3 days new symptoms occur redness or swelling is present. These could be signs of a serious condition.