Practi-Promethazine™ (for training)Practi Promethazine for clinical training. Practi Promethazine is a tinted vial that contains distilled water and simulates 50 mg 2 mL of the drug promethazine (Phenergan) used to treat allergy symptoms, nausea and vomiting after surgery and to prevent motion sickness. Manikin safe! Teach Your Students: Reading and interpreting dosage requirements Small vial pressure changes Small vial handling dexterity techniques Administration of intradermal