There are a lot of systems of giving up smoking that tries to make the process of smoking as unpleasant as possible. For instance argentic acitate in combination with smoke causes an unpleasant smell in the mouth. A method of frequent and deep inhalation is also rather popular; it leads to nicotine intoxication (nicotinism) and causes cigarette aversion. Nevertheless resent researches with large groups of patients show small effectiveness of these methods.