How long does posh stay in your system for on lab tests?

The detection window for phentermine (often referred to as "posh") in drug tests varies depending on the type of test used. In urine tests, it can typically be detected for 1 to 3 days after use, while blood tests may detect it for a shorter duration, usually up to 24 hours. Hair follicle tests can detect it for much longer, potentially up to 90 days. Factors such as dosage, frequency of use, and individual metabolism can also influence detection times.