GLASSIA® [Alpha1-Proteinase Inhibitor (Human)] 1.0g / 50mL vial. Each singleuse vial is labeled with the total Alpha1-Proteinase Inhibitor (Alpha1-PI) functional activity in mg. This vial size contains not less than 800 mg active Alpha1-PI. As of July 2023, GLASSIA® is no longer packaged with a 5-micron filter needle and a transfer needle (without a filter) is not supplied by the manufacturer. Please see the Prescribing Information for product administration instructions.