Biseko is used to restore lost blood volume, reduce blood protein and albumin levels, prevent infections, and treat blood dilution. The appropriate dosage will vary based on each person's condition and the severity of their illness.

The complement system consists of more than 20 different serum proteins that contribute to the body’s defense through various pathways. C3 and C4 are the two main components of the complement system and are used to assess its function and role in immune responses, infections, and autoimmune diseases.