If you have ITP or CIDP, you may only take GAMUNEX-C intravenously. GAMUNEX-C is also approved to treat idiopathic thrombocytopenic purpura (ITP) in adults and children and chronic inflammatory demyelinating polyneuropathy (CIDP) in adults. If you have PIDD, you may take GAMUNEX-C under the skin (subcutaneously) or in a vein (intravenously). GAMUNEX ®-C (immune globulin injection, 10% caprylate/chromatography purified) is approved to treat primary humoral immunodeficiency disease (PIDD) in patients 2 years of age and older. A flare-up of an existing type of anemia (autoimmune pure red cell aplasia).The most serious side effect for PIDD patients taking GAMUNEX-C was: A condition in which the airways narrow and swell and produce extra mucus.Sore throat caused by inflammation of the back of the throat.Irritation and inflammation of the mucous membrane inside the nose.In clinical studies with PIDD patients who got GAMUNEX-C intravenously, the most common side effects were: Familiar infectious diseases such as the common cold or flu.Severe throbbing pain or a pulsing sensation, usually on just one side of the head.Red rash or bumps, itchy, swollen, and tender skin with or without blisters or a burning feeling.A feeling of unhappiness, sadness, melancholy, gloom, hopelessness, or low spirits.Inflammation of the airways that carry air to the lungs.Swelling of the tissue lining the sinuses.Sensation of unease and discomfort in the upper stomach.A runny nose, nasal congestion, sneezing, cough, and sputum production.Infusion-site reactions such as redness, swelling, and itching.

The most common side effects in a clinical study with PIDD patients who received subcutaneous injections of GAMUNEX-C were:

Gamunex copay assistance