There are numerous various types of alcohol and drug abuse rehab centers in Harrisburg which alcohol and drug addicted clients can take advantage of. For example, there are drug and alcohol abuse rehab services which may be especially beneficial for someone who has a very brief case of substance abuse and might find luck at a short term drug rehabilitation program which will require the individual to reside in rehab for 4 weeks or less. For others there are far more intensive and long term substance abuse rehabilitation programs which involve a stay of 90 days or even longer in some cases, which is decided on the individual's background of alcohol and drug abuse and other factors including co-occurring psychological disorders. Drug and alcohol abuse rehab services in Harrisburg can be done as an outpatient or as an inpatient, with inpatient alcohol and drug abuse treatment programs offering considerably better success rates as a result of a higher quality of rehab program.