What are ways to detoxify from marijuana?

Time. Marijuana "withdrawal" with sleep problems, anxiety and irritability occurs but in the vast majority of cases, the only thing that is needed is time and abstinence, and these symptoms will pass within days to weeks. It depends on how the person smokes - how often, for how long, how deeply they inhale, and the quality of the marijuana. Good nutrition, adequate vitamins are all that are needed.