Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type Serum or Plasma (1) Test Area (-) Therapeutics (1) Test Category Alcohol Deterrents (2) Analgesics (200) Anesthetics (40) Antacids (11) Antianxiety (38) Antiarrhythmics (30) Anticholinergics (28) Antidepressants (144) Antidiabetics (19) Antidiarrheals (2) Antiemetics (5) Antiepileptics/Antiseizures (99) Antifibrinolytics (1) Antigout Agents (4) Antihistamines (45) Antihypertensives (66) Antileprosy Agents (2) Antimicrobials (56) Antimigraines (3) Antineoplastics (6) Antiparkinsons (6) Antipsychotics (80) Antirheumatics (2) Antispasmodics (3) Antithrombotics (7) Antithyroids (2) Antitussives/Cough Suppressants (13) Appetite Suppressants (5) Bronchodilators (8) Carbonic Anhydrase Inhibitors (1) Cholinesterase Inhibitors (10) Decongestants (11) Depressants (14) Diagnostic Aids (2) Diuretics (15) (-) Dopamine Precursor (1) Drugs of Abuse (1) Expectorants (3) Hypoglycemic Agents (2) Immunosuppressants (17) Industrial/Environmental Toxins (1) Laxatives (2) Mood Stabilizers (6) Muscle Relaxants (32) NMDA Antagonists (2) Opiate/Opioid Antagonists (7) Other (3) Potassium Channel Blockers (2) Retinoids (2) Sedative/Hypnotics (102) Stimulants (41) Sympathomimetic Amines (3) Vasodilators (13) Test Sub-Category Parkinsons (1) Test Test Name 2504SP Levodopa, Serum/Plasma