went to a B&M store. picked up 2 allerclears (8.69) and 2 aller-tec (11.99) . came home and noticed there was a exp date on each bottle (exp in 8/14). returned 3 and kept 1 aller-tec (zyrtec).
not worth stocking up just to save a couple bucks, since they are 365 day supplies, the potency would diminish by the time you would have to get to your 2nd bottle... unless you like taking expired medication.