Made of morphine, heroin is a highly addictive substance. It’s an opioid drug. People who start taking heroin regularly become addictive and they gradually start feeling the need to take more of it. Heroin withdrawals can be really severe if the addict stops taking it abruptly. The withdrawals symptoms include restlessness, sleep problems, uncontrollable leg movements, and more. There are many heroin addiction treatment programs that include therapy, methadone programs, detox and more. The withdrawal symptoms come up just after a few hours of taking up the last dose. These symptoms can be treated under the supervision of medical professionals with the help of heroin rehab programs.