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Medications and Drugs

Brand Names: Aralast, Aralast NP, Glassia, Prolastin, Prolastin-C, Zemaira

Generic Name: alpha 1-proteinase inhibitor (Pronunciation: AL fa 1-PRO tee nase in HIB i tor)

What is alpha 1-proteinase inhibitor (Aralast, Aralast NP, Glassia, Prolastin, Prolastin-C, Zemaira)?

Alpha 1-proteinase inhibitor is a protein, also called alpha 1-antitrypsin. This protein occurs naturally in the body and is important for preventing the breakdown of tissues in the lungs.

In people who lack the alpha 1-antitrypsin protein, breakdown of lung tissues can lead to emphysema (damage to the air sacs in the lungs).

Alpha 1-proteinase inhibitor is used to treat alpha 1-antitrypsin deficiency in people who have symptoms of emphysema.

Alpha 1-antitrypsin deficiency is a genetic (inherited) disorder and alpha 1-proteinase inhibitor will not cure this condition.

Alpha 1-proteinase inhibitor may also be used for purposes not listed in this medication guide.

What are the possible side effects of alpha 1-proteinase inhibitor?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; wheezing, difficulty breathing; feeling like you might pass out; swelling of your face, lips, tongue, or throat.

Stop using alpha 1-proteinase inhibitor and call your doctor at once if you have a serious side effect such as:

  • fever, chills, body aches, flu symptoms, sores in your mouth and throat;
  • pain or burning when you urinate;
  • wheezing, chest pain or tightness, trouble breathing; or
  • vision changes.

Less serious side effects may include:

  • nausea, bloating;
  • headache, dizziness, drowsiness;
  • feeling tired;
  • back pain, joint or muscle pain;
  • swelling in your hands or feet;
  • flushing (warmth, redness, or tingly feeling);
  • cold symptoms such as stuffy nose, sneezing, sore throat, cough; or
  • mild itching.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about alpha 1-proteinase inhibitor?

You should not use this medication if you have ever had an allergic reaction to alpha 1-proteinase inhibitor, or if you have an IgA (immunoglobulin A) deficiency or antibody against IgA.

Some brands of alpha 1-proteinase inhibitor must be mixed with a liquid (diluent) before given as an injection. If you are using the injections at home, be sure you understand how to properly prepare and store your medicine.

Call your doctor at once if you have a serious side effect such as fever, chills, body aches, flu symptoms, mouth sores, pain or burning when you urinate, wheezing, chest pain or tightness, trouble breathing, or vision changes.

Alpha 1-proteinase inhibitor is made from human plasma (part of the blood) which may contain viruses and other infectious agents. Donated plasma is tested and treated to reduce the risk of it containing infectious agents, but there is still a small possibility it could transmit disease. Talk with your doctor about the risks and benefits of using this medication.



Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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