Answer
They differ in oncotic effect, electrolyte content and fluid volume. The selected concentrated product has a stronger fluid-drawing effect, while the selected dilute products are mildly hypooncotic relative to plasma.
Sources for this answer
- Zenalb 4.5, a Human Albumin 4.5% Solutionemc · SmPC Current selected SmPC · Version 6
- Human Albumin Biotest 20%emc · SmPC Current selected SmPC · Version 6