The various alcohol and drug abuse rehab services which are available to alcohol and drug addicted individuals in Nashua can differ in many different ways. Some alcohol and drug abuse treatment services take place in a residential or inpatient location, where clients remain for the duration of their rehabilitation which offers a more therapeutic rehabilitation setting. Others offer substance abuse rehab programs on an outpatient basis which provides a sense of flexibility, though outpatient facilities are not always a suitable drug and alcohol abuse rehabilitation service for people in Nashua who are struggling with serious drug addiction issues. Whether inpatient or outpatient substance abuse rehabilitation programs are chosen, there are varying lengths of time that individuals will be expected to remain in the alcohol and drug rehabilitation program. For example, some short-term programs offer services for 30 days or less, whereas long-term centers will demand at least a 12 week stay.