Albumin 25% Human Injection Solution, Plasma Volume Expander by Octapharma 50 mL (Rx)Albumin 25% Human Injection is a concentrated intravenous solution of human albumin used to help restore blood volume and maintain oncotic pressure in certain medical situations. It works by pulling fluid from the bodys tissues into the bloodstream, thereby supporting stable circulation. Sterile IV Colloid Solution for Critical Care, Plasma Expansion, and Hospital Emergency Therapy Restore vital plasma volume with this FDA approved, prescription only