The idea is to stop smoking immediately and use the inhaler to relieve the cravings to smoke. After achieving this you then stop using the inhaler. Adults aged 18 years and over, the Inhaler can be used for up to 3 months using the following steps: Step 1: Set a date to quit and stop smoking cigarettes. Step 2: Over a period of up to 8 weeks, whenever you get a craving to smoke, you use the Inhaler instead. Aim to use between 3 and 6 cartridges per day. Do not use more than 6 per day. Step 3: After 8 weeks much of your smoking routine will have gone. Over the next 2 weeks start to reduce the number of cartridges used per day by half. Step 4: During weeks 11 and 12 continue to reduce the number of cartridges per day till you are using none at all.