However, the key difference between the medications is that, in addition to cetirizine, Zyrtec-D contains an additional ingredient, pseudoephedrine, a nasal decongestant. Cetirizine is an over-the ...

A decongestant is a medication that helps ease nasal congestion, which happens when something irritates the lining of your nose. This can result from a cold, the flu, or allergies, for example.

British pharmaceutical GSK announced in 2023 that it planned to stop producing its popular Zyrtec-D, an antihistamine and decongestant that contains pseudoephedrine, citing business reasons.

Based on expert recommendations, these nasal decongestants will help you breathe easy Nasal decongestants can provide much-needed relief, whether you suffer from a cold, allergies, or general ...

Anti-histamines combined with a decongestant are usually marked with a "D." Claritin-D, Allegra-D, and Zyrtec-D all contain a decongestant called pseudoephedrine, the same active ingredient that ...