Practi-Haloperidol™ mg/1 mL Tint Vial For TrainingPracti Haloperidol for clinical training. The Practi Haloperidol vial is a 1 mL glass tint vial filled with 1 mL of distilled water. Properly labeled dosage of 5 mg mL, this teaching aid perfectly simulates light sensitive drug haloperidol (Haldol), an antipsychotic medication that decreases excitement in the brain and is used to treat psychotic disorders such as schizophrenia, to control motor (movement) and verbal (Tourette's syndrome) tics, mania