In terms of success rates, long term drug rehab and alcohol treatment services supplied by Marengo rehab programs have been statistically more effective than any other rehab option. Aside from offering superior care and a structured setting, long-term drug rehab and alcohol treatment services in Marengo, Iowa are also usually designed to suit the needs of each individual in treatment. Individuals receiving long-term drug rehab and alcohol treatment services are encouraged to do the program at their own pace, with the focus put on the quality of treatment services as opposed to the speed in which the individual completes their program.