Nicorette Invisible 15mg Patch (Step 2) Nicotine patches are designed to give a controlled dose of therapeutic nicotine to help tackle cravings for 16 hours, an Effective once-a-day solution to help you deal with nicotine.Designed to be removed at night, so as not to add to sleep disturbance, giving you craving relief when you need it most. You are more likely to quit smoking when using this product with help from your pharmacist, doctor, a trained counsellor or a support programme. Please do not hesitate to contact our pharmacist for further advice on giving up smoking.