Addiction to cigarette smoking is basically an addiction to nicotine. Those who are attempting to overcome their addiction have found the most common cures ineffective. Switching to low-nicotine cigarettes simply causes problem smokers to smoke more. Cigarettes without any of this chemical substance are usually rejected because they don't satisfy smokers' needs. One aid, which some quitters have found effective, is a chewing gum containing nicotine, which allows them to stop without the unpleasant withdrawal symptoms. A similar kind of treatment provides a measured nicotine dose through an inhaler.