If you didn't know already, Airborne is getting sued for false claims.
http://thelede.blogs.nytimes.com/2008/03/04/makers-of-airborne-settle-false-ad-suit-with-refunds/?ex=1205470800&en=e20fbf7811709049&ei=5070 Check it out. Even if you don't have your receipts you can still get about $60 bucks for free. Here's the address for the settlement page
http://www.airbornehealthsettlement.com/faqs.htm