An interesting range of vaccines are being developed to deal with nicotine addiction. They prevent nicotine from activating pleasure centers in the brain.
If you are a smoker but don’t get to use this vaccine all is not lost. Scientists are also developing a vaccine for preventing smoking-induced lung cancer. So far experiments have been carried out on mice.
One wonders if the latter innovation will increase the demand for cigarettes by reducing the user costs of smoking. An earlier post that I made on the related issue of advertising cigarette cures suggests it might.