For the last 2 months I have not seen this product at my 2 cvs stores that shop. Now I don't know what is going on here, but I keep assuming it is sold out!! the next time, I am going to ask, because I did see the sticker still on the shelf. I have used the original product when it came out, and found it to work. I then decided to try the cvs brand and it truly is the same for a cheaper price. There is no difference, if you can still find this product, do not even hesitate to use it. Take it at the first sign of a sore throat or any sign of a cold. There are a lot of skeptics out there on this kind of remedy, buy I will tell you, that It has not failed me in the past 2 years. My boyfriend only tried it once, he was not faithful with it, therefore he stayed sick. He continues to get at least 2 - 3 colds per year, and works with kids, all the more reason to take this. I take it at the first sign of any cold symptom, and I either do not get a full blown cold, or it shortens the duration. If you have the flu or Bronchitis or something like that, than I cannot say if this helps. This is just good to take once in a while for your body. Packed with vitamins. Great product for this price.