Overview Reviews Product Description Liebermans Reagent - For the general screening to presumptively identify PMA, Ketamine, Barbiturates and Methadone. This test is used after a Brown result in Test A, or a clear result in Test A followed by no change in Test G. Product Videos Custom Field Product Reviews Write a Review Write a Review × Nik Nik Test - NIK-800-6089 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *