Alcohol Detox: How Long Does It Take and What Happens? An estimated\u00a016 million Americans\u00a0have alcohol use disorder (AUD). Most people with AUD benefit from some type of treatment. For those with\u00a0severe alcohol addiction, it\u2019s especially important, and it starts with detoxing from alcohol. But how long does it take to detox from alcohol?\u00a0 How Long Does it Take to Detox from Alcohol? Detox is just the initial step on the road to recovery, but it\u2019s an important one. It\u2019s when your body cleanses itself of all traces of the poison that\u2019s been inside it, and it allows you to get a fresh start. The detox process usually takes seven to 10 days. Rehab programs usually last a minimum of 30 to 45 days. Many patients benefit from 60- or 90-day stays at residential or inpatient treatment centers.