Recovery and Stability of Δ9-Tetrahydrocannabinol Using the Oral-Eze® Oral Fluid Collection System and Intercept® Oral Specimen Collection Device.

Oral fluid (OF) is increasingly used for clinical, forensic and workplace drug testing as an alternative to urine. Uncertainties surrounding OF collection device performance, drug stability and testing reproducibility may be partially responsible for delays in the implementation of OF testing in regulated drug testing programs. Stability of Δ(9)-tetrahydrocannabinol (THC) fortified and authentic specimens was examined after routine collection, transport and laboratory testing.