I used these patches when I went on a family vacation with a bunch of non-smokers. I was very surprised at how effective they were in taking away cravings and relieving stress, better than nicotine patches that I have also tried. I stopped without agony for ten days. I started smoking again after returning to the real world - not committed yet. I am ready to stop again, and am ordering these patches for support. If you are quitting, you may find these patches very helpful for a relatively low cost.