Niquitin pre quit 21mg patches are part of a gradual quitting programme to ease you into your quit stopping smoking straightaway is best for your health however if you are not able to niquitin pre quit 21mg patches can be used for 2 4 weeks while you continue to smoke as needed as an alternative doctors can also prescribe medication that can assist with quiting smoking please visit our online doctor service to proceed with a stop smoking consultation our uk registered gp will review y