Patches provide a once-a-day solution to quitting. With CONTROLLED RELEASE TECHNOLOGY, they deliver nicotine through a special rate-controlling membrane into your bloodstream over 24 hours. Available in 21mg, 14mg and 7mg strengths (over 24 hours). Nicotinell patches help you take control of your habit discreetly and without fuss. By stepping down from 21mg or 14mg patches, your quitting journey can be self-paced.