The various drug and alcohol abuse rehabilitation programs which are available to alcohol and drug addicted persons in Gwynn Oak, Maryland can differ in many different ways. Quite a few substance abuse rehabilitation services are conducted in a residential or inpatient facility, where clientele remain the entire time they are in rehabilitation which offers a more therapeutic rehabilitation setting. Others offer alcohol and drug abuse rehabilitation services on an outpatient basis which allows for more versatility, although outpatient programs are not always a suitable substance abuse rehabilitation program for men and women in Gwynn Oak, Maryland who are struggling with serious drug or alcohol addiction difficulties. Regardless of whether inpatient or outpatient substance abuse rehabilitation programs are chosen, there are varying lengths of time that men and women will be required to remain in the drug and alcohol treatment program. For example, some short-term programs provide programs for a month or less, while long-term facilities will demand at least a 12 week stay.