What is the neurotransmitter of anger?

Surely the feeling of anger is caused by a neurotransmitter. It would be such a benefit to humanity if it could be blocked, like other neurotrnasmitters are easily blocked. If it were also substance P, its blocker is top secret. But, all you need to do it take a sample of substance P, mix it with an immune system adjuvant, like nickel acetate, put that mixture in the blood stream, and, the immune system will destroy it for the rest of your life; or unless, those antibodies could be isolated and mixed with an adjuvant and that mmixture put in the blood stream to destroy the unwanted antibodies. I know about a case of lupus that was cured that way. Cancer can be cured this way. The problem isn't medical ignorance, it is un-Constitutionally enforced secrecy.