Allegra, the third biggest global allergy brand ... with similar functional claims and not owning the key emotional drivers of purchase. We'd have to unify the local markets behind a single campaign ...

According to a 2019 study published in the International Journal of Molecular Science, the OTC antihistamine Allegra is the ...

Getty Images Some antihistamines, like Claritin-D and Allegra-D, come combined with pseudoephedrine (Sudafed). Doctors don’t recommend products that contain pseudoephedrine for children at all ...

You can also take medicine that combines antihistamine and decongestant all-in-one. These medications are usually marked with a "D" — such as Claritin-D, Allegra-D, and Zyrtec-D. For a long list ...