Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (2) Sample Type (-) Blood (1) Serum or Plasma (1) (-) Urine (1) Test Area Therapeutics (2) Test Category Alcohols (5) Analgesics (14) Anesthetics (3) Antiarrhythmics (1) Anticholinergics (2) Antidepressants (7) Antidiabetics (1) Antiepileptics/Antiseizures (13) Antihistamines (4) Antihypertensives (4) Antimicrobials (2) Antipsychotics (5) Appetite Suppressants (2) (-) Cholinesterase Inhibitors (2) Decongestants (7) Diagnostic Aids (2) Drugs of Abuse (7) Exposure (1) Hallucinogens (6) Herbicides (1) Metals/Elements (7) NPS/Designer Drugs (1) Perfluorinated Compounds (1) Pesticides/Insecticides (2) Plasticizers (1) Sedative/Hypnotics (4) Solvents (2) Therapeutics (9) Vasodilators (2) Volatiles (7) Test Sub-Category Other (2) Test Test Name 4038B Pyridostigmine, Blood 4038U Pyridostigmine, Urine