sams club has the claritin generic for $13.42 - 400ct (3.3 cents/pill). For those that don't have a costco nearby.
They also have 400 Zyrtec for the same price... I just bought some this week. You get a 100 bottle and a 300 bottle...
Sams are made in the USA by Perrigo, probably one of the best pharma companies in the business. (They probably make Costco also).