Tobacco contains the substance nicotine which is extremely addictive. Nicosip 4mg Gum is a form of nicotine replacement therapy (NRT). It contains nicotine but not the other toxic chemicals in tobacco smoke such as tar and carbon monoxide. It may be used to help you quit smoking and reduce the unpleasant withdrawal effects and cravings that often occur when you stop smoking. This medicine has worked very well for many years to help people stop smoking and is even more effective if you have other support such as counseling. This treatment may take several weeks to work so you need to continue until you have been successful. Quitting smoking is extremely hard and requires you to change your behaviors but it has a huge range of health benefits and dramatically improves your quality of life.