Heroin is highly addictive to a point where nearly ¼ of people who use heroin develop a dependency on it. Once addiction has developed, users will stop at nothing to get more of the drug, even it means risking their job, damaging relationships with loved ones, and even putting their life in immediate danger. Heroin addicts often administer more than one dose a day and polydrug use is common. Adulterants with which heroin is cut include quinine, ketamine, and sugar. Heroin addiction affects our health such as organ disease, compromised immune system, damaged brain system, the risk of infectious disease. It also affects your work performance like unemployment, poor performance, and difficulty with responsibility and absenteeism. Moreover, it may affect relationships, you may engage in violent behavior.