In terms of success rates, long term drug rehab and alcohol treatment services supplied by Darien, IL. rehab programs have been proven to be more successful than any other treatment alternative. Aside from supplying superior care and a secure environment, long-term drug rehab and alcohol treatment services in Darien, IL. are also usually tailored to fulfill the needs of each individual in treatment. People receiving long-term drug rehab and alcohol treatment services are encouraged to go through the program at their own pace, with the focus put on the quality of treatment as opposed to the speed in which the individual completes their program.