What is Privigen?

Privigen is an intravenous Ig therapy that contains antibodies—essential proteins in your immune system that identify and destroy bacteria and viruses that cause disease. The primary antibody found in Privigen, immunoglobulin G, is the main type of antibody made by your immune system.

Your doctor may refer to your Privigen treatment as "Ig," "intravenous Ig," or "IVIg."

What is chronic inflammatory demyelinating polyneuropathy (CIDP)?

CIDP is a rare disorder of the nervous system in which the protective outer layer of your nerves, called myelin, is attacked by the immune system.

Over time, the myelin damage may cause gradual weakness and a loss of feeling in your arms and legs—and loss of movement (motor function). If CIDP is not treated, it can cause permanent nerve damage.