There are a number of different types of drug and alcohol abuse treatment centers in Vienna which drug and alcohol addicted people can benefit from. As an example, there are alcohol and drug abuse rehabilitation centers in the Vienna area which cater to someone with a brief history of substance abuse and may benefit from a short term drug and alcohol rehabilitation center which will require the individual to continue to be in treatment for 4 weeks or less. There are also much more comprehensive and long term alcohol and drug abuse rehab programs in Vienna which call for a stay of 90 days or longer, depending on the individual's background of alcohol and drug abuse and other factors including co-occurring mental health issues. Substance abuse treatment programs can be carried out on an outpatient basis or an inpatient basis, with inpatient drug and alcohol abuse rehab programs offering substantially better outcomes due to a higher quality of rehabilitation program.