- March 1, 2023
What is Dayquil? Dayquil is an over-the-counter medication used to treat cold and flu symptoms such as headache, fever, chills, sore throat, and congestion. It is available in both liquid and pill form and contains ibuprofen, acetaminophen (paracetamol), and hydrocodone pills. Common Side Effects of Dayquil Dayquil has a