You may report side effects to Health Canada at 1-866-234-2345. Do not use with any other drug containing acetaminophen without asking your doctor or pharmacist first. Acetaminophen is in many ...

One ingredient in this product is acetaminophen. Taking too much acetaminophen may cause serious (possibly fatal) liver disease. Adults should not take more than 4000 milligrams (4 grams ...

However, acetaminophen is often used in combination with antihistamines, including Tylenol PM and many cold and flu products. Some antihistamines are known to cause drowsiness, so you may ...