The different drug and alcohol abuse rehabilitation programs which are accessible to drug addicted people in Paris can differ in several different ways. Quite a few alcohol and drug abuse treatment programs take place in a residential or inpatient facility, where clients remain for the duration of their treatment which provides a more therapeutic treatment environment. Others offer drug and alcohol abuse rehab programs on an outpatient basis which allows for more versatility, although outpatient centers may not be an appropriate alcohol and drug abuse rehabilitation program for people in Paris who are struggling with long term addiction issues. Regardless of whether inpatient or outpatient substance abuse treatment programs are chosen, there are varying amounts of time that men and women will be asked to continue to be in the drug and alcohol treatment facility. For instance, quite a few short-term programs offer programs for 4 weeks or less, while long-term centers will call for at least a 3 month stay.