The Nicorette Inhaler can calm cravings plus satisfy the hand-to-mouth ritual associated with smoking. It is called an inhaler but nicotine leaches through the lining of the mouth rather than through the lungs. To use the inhaler, simply puff on it in the same way you would a cigarette. Each cartridge will last for about 20 minutes, or about 4 to 5 uses. Start with 6 to 12 cartridges a day for the first 12 weeks and then slowly reduce over time.