The length of time that lean (a mixture of codeine, a prescription opioid pain reliever, and soda or candy) stays in your system depends on several factors, including the dose and frequency of use, as well as individual factors such as age, weight, liver function, and overall health.
Codeine is metabolized in the liver and eliminated from the body in the form of metabolites, which can be detected in urine, blood, and hair. On average, codeine has a half-life of around 3-4 hours, meaning it takes that amount of time for half of the drug to be eliminated from the body. However, this can vary depending on individual factors.
In general, codeine can be detected in the urine for up to 48-72 hours after use, although this can be longer in heavy users. In blood, codeine is usually detectable for up to 24 hours. Hair tests can detect codeine use for up to 90 days after the last use.
It's important to note that the exact length of time that codeine stays in your system may vary, and detection times can be influenced by a number of factors, including the method of testing used. If you have concerns about codeine use and detection, it's best to consult with a healthcare provider or a substance abuse specialist.