The different alcohol and drug abuse rehabilitation services which are accessible to drug addicted people in St. Marys can vary in a lot of different ways. Some drug and alcohol abuse rehabilitation services take place in a residential or inpatient facility, where individuals reside the entire time they are in rehab which provides a more conducive rehab environment. Others offer substance abuse rehab programs on an outpatient basis which provides a sense of flexibility, although outpatient programs may not be a suitable drug and alcohol abuse treatment service for people in St. Marys who are having difficulties with serious drug or alcohol addiction difficulties. Whether or not inpatient or outpatient substance abuse rehabilitation services are selected, there are varying lengths of time that people will be asked to stay in the drug rehab program. For instance, many short-term programs offer services for a month or less, whereas long-term centers will call for at least a 12 week stay.