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Medications and Drugs

Brand Names: Aldurazyme

Generic Name: laronidase (Pronunciation: lah RAH nih daze)

What is laronidase (Aldurazyme)?

Laronidase is used to treat some of the symptoms of a genetic condition called Hurler syndrome. Hurler syndrome is also called mucopolysaccharidosis (MYOO-koe-pol-ee-SAK-a-rye-DOE-sis).

Hurler syndrome is a metabolic disorder in which the body lacks the enzyme needed to break down certain sugars and proteins. These substances can build up in the body, causing enlarged organs, abnormal bone structure, changes in facial features, breathing problems, heart problems, vision or hearing loss, and changes in mental or physical abilities.

Laronidase may improve breathing and walking ability in people with this condition. However, this medication is not a cure for Hurler syndrome.

Laronidase may also be used for other purposes not listed in this medication guide.

What are the possible side effects of laronidase (Aldurazyme)?

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

Some people receiving a laronidase injection have had a reaction to the infusion (when the medicine is injected into the vein). Tell your caregiver right away if you have a headache, skin rash or itching, warmth or tingly feeling, or trouble breathing when laronidase is injected.

Less serious side effects may include:

  • runny or stuffy nose, sore throat, cough;
  • mild skin rash;
  • numbness or tingling; or
  • pain, redness, swelling, or other irritation where the medicine was injected.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about laronidase (Aldurazyme)?

Laronidase may improve breathing and walking ability in people with Hurler syndrome. However, laronidase is not a cure for this condition.

Some people receiving a laronidase injection have had a reaction to the infusion (when the medicine is injected into the vein). Tell your caregiver right away if you have a headache, skin rash or itching, warmth or tingly feeling, or trouble breathing when laronidase is injected.

Your name may need to be listed on a patient registry while you are using this medication. The purpose of this registry is to track the progression of this disorder and the effects that laronidase has on long-term treatment of Hurler syndrome.



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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