Practi-Fentanyl™ For TrainingPracti Fentanyl 5 mL Amp for clinical training, accurately simulates 250 mcg 5 mL (50 mcg mL) (0. 05 mg mL) of the synthetic opioid analgesic, fentanyl (Duragesic). Each Practi Fentanyl comes as a labeled 5 mL ampule containing distilled water. Make your lab fun and meaningful, yet safe, with this look a like Practi Fentanyl simulated medication. Qty: 100 ampules NOT FOR HUMAN OR ANIMAL USE. FOR TRAINING PURPOSES ONLY.