You mean taking a very cardiovascular-aggressive nasal decongestant along with opioids?
I think you'd have depressed breathing through clear sinuses. Whether that's an improvement or not is a matter of perspective.
Oh, and if they still had codeine for sale OTC in the USA, I'm sure you would find Tylenol/Codeine DaytimeSevere Cold and Flu Maximum Strength Capsules. That's how good your combo is.