Researchers have a new tool in the fight against drugs; a vaccine giving to help heroin addicts.
Preliminary research shows the new vaccine could help prevent relapse in people addicted to heroin.
The vaccine keeps the psychoactive ingredients of heroin from reaching the brain and showed promise in lab rats that had been exposed to the drug in the past.
Rats that did not get the vaccine quickly resumed their craving for heroin when given just one infusion.
But vaccinated rats, even those who had been severely addicted, did not resume drug-seeking behavior when given access to heroin again.
Scientists said if the vaccine works well in human trials, it could become a standard therapy for heroin addiction.