It is indicated as an aid for smokers over 18 years of age who smoke less than 20 cigarettes a day and who, being determined to quit smoking, may suffer from the unpleasant effects associated with giving up this addiction: irritability, anxiety, "tobacco hunger", insomnia or constipation, mainly.
Because of its nicotine content, it reduces the unpleasant withdrawal effects usually felt when quitting smoking, but it does not provide the same satisfaction as a cigarette. Therefore, to quit smoking, you must rely on your conviction, determination and willpower.
You should consult a doctor if you get worse or if you do not improve after 6 months.