You can use both Dayquil Cold and Flu Relief Liquid and NyQuil Cold and Flu Nighttime Relief Liquid on the same day but DO NOT take them at the same time.Taking both products at the same time can lead to liver damage due to an excessive dose of acetaminophen (also known as Tylenol), ...
Same Day Delivery As soon as 1 hour or schedule delivery. When a cold comes on strong, knock it out with Vicks DayQuil and NyQuil SEVERE Cold & Flu Liquicaps. Just one dose starts working fast to relieve 9 of your worst cold and flu symptoms, to help take you from 9 to none. From...