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Pronunciation: AL-gloo-KOE-si-dase AL-fa
Common Brand Name(s): Myozyme
This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional. Always ask your health care professional for complete information about this product and your specific health needs.
Alglucosidase alfa may cause serious (sometimes fatal) allergic reactions that may happen during and up to 3 hours after the infusion. A health care professional will monitor you closely during and after your infusion. Get medical help right away if you notice any signs of a serious allergic reaction, such as rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing, or chest pain. Your doctor may prescribe other medications (such as antihistamines, corticosteroids) to treat these side effects. Your infusion may also be slowed down or stopped depending on your symptoms.
Rarely, people using this medication have developed severe skin/kidney problems. Tell your doctor right away if you develop changes in skin color, change in the amount of urine, or pink/bloody urine.
Before starting treatment with this medication, tell your doctor if you have a history of heart problems (such as heart failure), breathing problems (such as fluid in the lungs), or swelling. These problems may get worse during the infusion. Your doctor or nurse may monitor you for longer periods after your infusion.
This medication is used by people with a certain inherited condition (Pompe disease) to reduce high levels of a certain substance (glycogen) that builds up in the blood. Having high levels of glycogen in the blood may cause muscle weakness, heart problems, and breathing problems. Alglucosidase alfa works by breaking down glycogen in the blood.
Read the Patient Information Leaflet if available from your pharmacist before you start using alglucosidase alfa and each time you get an infusion. If you have any questions, ask your doctor or pharmacist.
This medication is given by injection into a vein by a health care professional. It is given as directed by your doctor, usually once every 2 weeks. It is injected slowly into a vein over 4 hours. The dosage is based on your medical condition, weight, and response to treatment.
Infusion reactions may happen while you are receiving alglucosidase alfa and for a short time after. Tell your doctor or nurse right away if you have any symptoms of infusion reactions such as shortness of breath, fever, sweating, flushing, nausea, or vomiting. Your doctor may slow down or stop your treatment for some time if you get serious side effects. Your doctor may prescribe other medications for you to take to help decrease these side effects. Carefully follow your doctor's directions for all of your medications. See also Warning section.
Use this medication regularly to get the most benefit from it. To help you remember, mark the days on the calendar when you need to receive the medication.
See also Warning section.
Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Alglucosidase alfa can commonly cause a rash that is usually not serious. However, you may not be able to tell it apart from a rare rash that could be a sign of a severe reaction. Get medical help right away if you develop any rash.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Before using alglucosidase alfa, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history.
This drug may make you dizzy. Alcohol or marijuana (cannabis) can make you more dizzy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
This medication passes into breast milk. Consult your doctor before breast-feeding.
Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Alberta residents can call PADIS (Poison and Drug Information Service) 24 hours a day at 1-800-332-1414. Canada residents can call a provincial poison control center.
Lab and/or medical tests (such as urine tests, immunoglobulin levels) should be done while you are using this medication. Keep all medical and lab appointments.
It is important to get each dose of this medication as scheduled. If you miss a dose, ask your doctor or pharmacist right away for a new dosing schedule.
If you have questions about missing a dose or you don't have more medication, contact your healthcare provider or pharmacist.
Not applicable. This medication is given in a clinic or doctor's office and will not be stored at home.
Information last revised February 2023.
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