I"ve used Jamieson Lozenges for several years and they work very well for me. I'm an American and got introduced to these on a trip to Canada in 2014 when I had a cold and ran out of the Cold Eeze Lozenges that I used at that time. I liked these so well for both taste and performance that I've stayed with them ever since. I always bought the 30 count boxes in quantity until I saw this 110 count box, which is a far better value. I highly recommend both this product and this size package if you want to keep a sufficient quantity on hand.The taste of these are a lot better than I was expecting. I think they worked? I took these as a preventative measure when my husband showed signs he was sick with something. I never got sick (it was just a cold though, not covid) and I took a couple of these every day for a week and a half. He took them too and said they helped.I read a story about a doctor whos child had leukemia. her nose was watery so he gave her a zink but instead of her swallowing the pill she sucked on it. Within 20 minutes the dripping stopped and within an hour all signs of a cold were gone. I swear by this stuff. If you take them at 1st signs of a cold it really works. Remember that you have to spit out the phlegm when it comes up....that is the zink sticking to the sickness.The lozenges come in easy to track & use. I try to take 50mg per day so 5 tabs per day as a means to prevent cold flue etc. Wish it was available in larger quantity.I was happy to find a large pack to last longer and at a great price! The taste is ok but not amazing. Product as expected and no concerns with my purchase.Not sure if it reduces the duration of colds. Just a hope that this works.