how long does codeine stay in your system
A blood test can usually only detect codeine for 6 hours or so after a personâs last use. A urine test can detect codeine in a personâs system for 1 to 2 days after their last use. Saliva tests can determine codeine use in most cases for up to 4 days after its last use. Hair tests, which are some of the most powerful drug clearance testing options, will often be able to determine oneâs use of codeine for up to 90 days after their last use.
The exact amount of time that codeine is detectable in urine depends on the amount of codeine a person is taking, what formulation of the drug theyâre using, and how long theyâve used it. Typically, codeine can be detected in urine for only 1 or 2 days.