Medically reviewed by Alex Yampolsky, PharmD When you have nasal congestion, you may consider using products containing either phenylephrine or pseudoephedrine. These are two common ingredients in ...

Zyrtec (cetirizine) and Zyrtec-D (cetirizine and pseudoephedrine) have similar names and uses. However, the key difference between the medications is that, in addition to cetirizine, Zyrtec-D ...

As we head into spring, many of us will also head into allergy season. Symptoms can vary: from severe nasal congestion or ...

Claritin-D, Allegra-D, and Zyrtec-D all contain a decongestant called pseudoephedrine, the same active ingredient that powers Sudafed. It makes your nose feel less stopped up by narrowing the ...