When wearing this patch I definitely felt as though my tolerance was higher. Usually I vomit after 2-3 drinks without the patch, but with it - I could drink 3x the amount without feeling sick yet, although I do still get bright red with the patches on! Ultimately it is good that I can drink more without feeling sick, however it makes me over drink and end up being more sick toward the end of the night. This is user error though and nothing on the patch as I need to know my limits better, althoug...