Heroin
Heroin is a drug. It is also known as Diacetylmorphine or Diamorphine. Heroin was originally a trade name. It is an opioid - a type of drug which acts like morphine in the body. Heroin is called a semi-synthetic opioid. This means it is made from an opiate that occurs in nature. For Heroin, that natural opiate is morphine.