Phenylephrine is also supposed to be able to constrict blood vessels to relieve congestion, but studies show it breaks down ...
“There are countless cold medicines out there, so when you look at labels, you want to be careful to see what ingredients are ...
Expectorants typically contain guaifenesin as their active ingredient. It acts on the mucus ... name that contains guaifenesin is Mucinex. Saline nasal washes, also known as nasal irrigation ...