What Are the Side Effects of Mixing Tylenol & Aleve?
Both Tylenol and Aleve provide pain relief and lower fever. Tylenol is acetaminophen and Aleve is a nonsteroidal anti-inflammatory. Taking Tylenol according to recommended dosage produces negligible adverse effects. Aleve, however, causes many side effects. When taken together, Tylenol and Aleve can lead to serious side effects. Although rare, these adverse reactions can be fatal.