Is DayQuil REALLY Caffeine-Free? You Won't Believe This!

No, dayquil does not contain caffeine. Read more for frequently asked questions about dayquil and how to use it. No, dayquil does not contain caffeine. Can i take dayquil if i have high blood pressure? In patients with hypertension, the use of certain.

The medicine comes in a gel cap and liquid formulas. A moderate drug interaction exists between caffeine and vicks dayquil cold & flu relief. View detailed information regarding this drug interaction. Find patient medical information for vicks dayquil oral on webmd including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Find patient medical information for dayquil liquicaps oral on webmd including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Find patient medical information for dayquil liquicaps oral on webmd including its uses, side effects and safety, interactions, pictures, warnings and user ratings. If you take dayquil (acetaminophen, dextromethorphan, and pseudoephedrine liquid) on a regular basis, take a missed dose as soon as you think about it. If it is close to the time for your next.