Practi-Bupivacaine™ (for training)Practi Bupivacaine (50 mL) vial for clinical training. The Practi Bupivacaine 50 mL vials simulate 0. 5% (5 mg mL) of bupivacaine (Marcaine) which is a medication used to decrease feeling in a specific area, for local infiltration, peripheral nerve block, sympathetic nerve block, and epidural and caudal blocks. Practi Bupivacaine vial is filled with distilled water and is safe for use with manikins. Teach Your Students: Vial handling dexterity