Drug addiction is a prime example of biochemical psychology. When people use drugs such as nicotine, they trigger dopamine receptors in the brain, causing a pleasurable sensation. People want to repeat the feeling and thus get addicted to the drug. With the development of a vaccine to treat addiction, researchers attempt to prevent drugs from crossing over the bloodbrain barrier and triggering the dopamine receptors. Experiments and clinical trials prove the efficacy of the nicotine vaccine. However, Phase III trials and additional research are necessary before the vaccine can be launched for public use.
Florence, R. (2012). Quest for Vaccines to Treat Addiction. The Science Journal of the Lander College of Arts and Sciences, 5(2). Retrieved from https://touroscholar.touro.edu/sjlcas/vol5/iss2/8