The medications include hayfever treatments like Piriton, Cetirizine and Loratadine and stomach issue relief such as Buscopan ...

Two of the biggies are Zyrtec and Claritin — over-the-counter drugs have been helping folks with seasonal allergies for years ...

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 ...

2 days for antihistamines (e.g. cetirizine, fexofenadine and ebastine); 2 days for decongestants; 14 days for cromoglycate; 10 days for loratadine; and not on any other medication during the study ...