Nicorette Inhaler is the only inhaler including nicotine clinically proven to help you quit smoking. Containing 4 milligrams of nicotine in each inhaler refill, this product helps fight cravings and unpleasant withdrawal symptoms to help you quit. The Nicorette Inhaler is made up of a mouthpiece and a replaceable nicotine cartridge that lasts for about 20 minutes of frequent puffing. Use the Nicorette Inhaler when you have a craving for a cigarette, up to 12 times a day, and the cartridge will release nicotine to help satisfy your craving. Because it is held just like a cigarette, it will keep your hands busy too. Feel confident in your quit attempt with this smoking cessation aid.