Within the framework of the 4th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV), substance dependence is redefined as a drug addiction, and can be diagnosed without the occurrence of a withdrawal syndrome. It was described accordingly: "When an individual persists in use of alcohol or other drugs despite problems related to use of the substance, substance dependence may be diagnosed. Compulsive and repetitive use may result in tolerance to the effect of the drug and withdrawal symptoms when use is reduced or stopped. This, along with Substance Abuse are considered Substance Use Disorders." In the DSM-5 (released in 2013), substance abuse and substance dependence have been merged into the category of substance use disorders and they no longer exist as individual diagnosis. Russel Brand on Addiction and the 12 Step Program
NIDA recommends that any type of drug addiction treatment last at least 90 days; in fact, they find that shorter treatment lengths demonstrate limited effectiveness.11 Studies have demonstrated that the people who stay for 3 months or longer typically have better outcomes.12 So, while the initial investment of time can seem daunting, longer treatment lengths pay off.