Is it safe to drive on dayquil?

Yes, it is safe. DayQuil does not cause drowsiness so it is okay to drive after taking it.
DayQuil. Hello, while any medication can cause many different reactions, dayquil is a safer medication to drive or operate machinery than it's counterpart nyquil. If this is the first time you are using this medication, see how it works on you. If you feel impaired or sleepy, don't drive.