The U.K.’s Daily Mail recently ran a story on a plan to vaccinate children for cocaine, heroin and tobacco. The vaccine would prevent any effects from the drugs and therefore prevent any addiction.
A group called the Transform Drug Policy Foundation has written a response on their blog. They argue that: Drug vaccines don’t really work; Giving drug vaccines to children is profoundly unethical; Even if vaccines worked it wouldn’t prevent problematic drug use, or offending.
I find it pretty unlikely that there would be any significant steps in this direction in the near future. I think it’s far more likely that drugs like this will be tried with people who have developed problems before their used in preventative strategies.