[Rick Lee]

Zyrtec D was a miracle drug for me, really changed my life. I didn't need it often, maybe a handful of times per year. But when I needed it, I was at the end of my rope and would have done anything to relieve my suffering. It always made me drowsy and feel weird, but when breathing through my nose became more important, I took Zyrtec D and it always worked. I know it's OTC now and, when my old prescript. for it ran out, I opted for the generic Cetirizine HCl in 10 mg tablets. That stuff did not work at all. I just ran to the store to get some real Zyrtec and noticed the active ingredient is exactly the same in both drugs. WTF? Why did the old presc. Zyrtec D work so well for me, yet the new stuff, which is supposedly the same thing, didn't work at all? Are there other active ingredients in either drug, not listed on the bottles? Anyone have a drug that works best for them?