The various substance abuse rehab services which are available to drug addicted persons in Shenandoah, IA. can differ in several various ways. Some substance abuse rehabilitation services are offered in a residential or inpatient setting, where individuals reside the entire time they are in rehabilitation which provides a more conducive rehabilitation environment. Others provide alcohol and drug abuse rehab services on an outpatient basis which allows for more versatility, though outpatient centers may not be a suitable substance abuse rehab program for people in Shenandoah, IA. who are having difficulties with long term addiction problems. Regardless of whether inpatient or outpatient alcohol and drug abuse rehab services are chosen, there are also different amounts of time that people will be asked to stay in the drug rehabilitation center. For instance, some short-term programs provide services for a month or less, whereas long-term facilities will call for at least a 3 month stay.