How Long Does Flexeril Stay in Your System?
It will take at least 4 days to clear out of your system. This is not a definite time because kidney and liver functions are different in people.
Flexeril will stay in a person's system for 10-20 days, on average. This is when it will likely stop being detectable.
Flexeril stays in your system for about 72 hours. This can also depend on the amount taken, and how fast your body metabolizes it.
Flexeril will stay in your system for 12-24 hours, on average. This can vary depending on how fast your body metabolizes it.