Explore how to cleanse your body of drugs in 24 hours and understand the drug metabolism & detoxification process. The detox and withdrawal timeline can also vary in length depending on a person’s overall health, their metabolism, weight, and the severity of their addiction. Furthermore, people who are addicted to several substances at once may experience a longer, more pronounced withdrawal and detox period. For those wishing to get clean from drugs or alcohol, understanding the withdrawal and detox period for each substance can make the process seem less daunting.