Eliglustat - oral
Eliglustat - oral
This medication is used for long-term treatment of a certain rare genetic problem (Gaucher's disease). Eliglustat works by decreasing the amount of a certain natural fatty substance (glucosylceramide) that builds up due to this condition. This can improve symptoms of Gaucher's disease, such as bruising, tiredness, pain in the joints/bones, and a swollen liver/spleen.
Read the Medication Guide provided by your pharmacist before you start taking eliglustat and each time you get a refill. If you have any questions, ask your doctor or pharmacist.
Take this medication by mouth with or without food as directed by your doctor, usually once or twice daily. The manufacturer directs to swallow the capsules whole, preferably with water, and not to open, crush, or dissolve the capsules before swallowing. However, other similar drugs (immediate-release capsules) can be opened, and the contents may be sprinkled on or mixed in food. Follow your doctor's directions on how to take this medication. If you are also using enzyme replacement treatment (such as imiglucerase, velaglucerase alfa, or taliglucerase alfa), you may take this medication 24 hours after your dose of the enzyme replacement treatment.
Avoid eating grapefruit or drinking grapefruit juice while using this medication unless your doctor or pharmacist says you may do so safely. Grapefruit can increase the chance of side effects with this medicine. Ask your doctor or pharmacist for more details.
The dosage is based on your medical condition, response to treatment, laboratory tests, and other medications you may be taking. Be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
Use this medication regularly to get the most benefit from it. To help you remember, take it at the same time(s) each day.
Tell your doctor if your condition does not improve or if it worsens.
Nausea, upset stomach, abdominal pain, gas/bloating, diarrhea, headache, back pain, arm/leg pain, dizziness, or weakness may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she 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.
Get medical help right away if any of these rare but serious side effects occur:
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including:
In the US -
Before taking eliglustat, 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, especially of:
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).
Eliglustat may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can rarely cause serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that need medical attention right away.
The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may cause QT prolongation. Before using eliglustat, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions:
Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you use certain drugs (such as diuretics/"water pills") or if you have conditions such as severe sweating, diarrhea, or vomiting.
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.
It is unknown if this medication passes into breast milk. Because of the possible risk to the infant, breast-feeding while using this drug is not recommended. Consult your doctor before breast-feeding.
See also How to Use section.
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.
Other medications can affect the removal of eliglustat from your body, which may affect how eliglustat works. Examples include azole antifungals (such as fluconazole, ketoconazole), HIV protease inhibitors (such as ritonavir, saquinavir), macrolide antibiotics (such as erythromycin, clarithromycin), rifamycins (such as rifabutin, rifampin), paroxetine, St. John's wort, drugs used to treat seizures (such as carbamazepine, phenobarbital, phenytoin), among others.
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. Canada residents can call a provincial poison control center.
Do not share this medication with others.
Laboratory and/or medical tests (such as complete blood count, liver/spleen measurements, a certain liver enzyme test-CYP2D6 genotype) should be performed before you start treatment, periodically to monitor your progress, or to check for side effects. Consult your doctor for more details.
Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.
Information last revised October 2018.
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