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How does it work?Nicorette patches contain nicotine. They are a type of medicine known as nicotine replacement therapy (NRT) and are used to help smokers give up the habit.Nicotine is the addictive substance present in tobacco. Smokers who try to give up often experience unpleasant withdrawal symptoms and cravings for cigarettes, because they are dependent on the nicotine in tobacco. Withdrawal symptoms can include irritability, headaches, restlessness, insomnia and difficulty concentrating. These, combined with cigarette cravings, are why it is difficult for some people to give up smoking.Nicotine replacement therapies work by giving you a small amount of nicotine, but without the dangerous effects of inhaling tobacco smoke. This helps relieve the withdrawal symptoms and cravings for a cigarette that you get when you stop smoking, and allows you to get on with breaking the psychological habit of smoking. If you are physically addicted to nicotine, using NRT has been shown to almost double your chances of successfully quitting smoking.Nicorette patches are worn continuously for 16 hours. The nicotine in the patches is absorbed continuously from the patches, through the skin and into the bloodstream. This produces a lower amount of nicotine in the blood than smoking, but the continuous level is enough to help prevent the withdrawal symptoms and cravings that you get after you stop smoking.
One patch should be applied at the same time every day, usually in the morning. It should be removed after 16 hours, usually at bedtime.
but the patches that were recommended by my doctor say to wear them continuously for twenty four hours, changing them at the same time each day...