Signifor LAR 20 mg IM suspension

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Medication name

Generic name:
Pasireotide - intramuscular injection

Pronunciation
(PAS-i-REE-oh-tide)

Brand name(s)
Signifor Lar

Uses

Pasireotide is used to treat a certain condition (acromegaly) that occurs when the body makes too much of a certain natural substance called growth hormone. Treating acromegaly helps reduce the risk of serious problems such as diabetes and heart disease. Pasireotide works by decreasing the amount of growth hormone made in the body.

Pasireotide is also used to treat a certain condition (Cushing's disease) when surgery has not been fully successful or cannot be used to correct the condition. Cushing's disease occurs when the body makes too much of a certain hormone called cortisol. Having too much cortisol in the body may lead to high blood pressure, high blood sugar, and other problems. Pasireotide works by decreasing the amount of cortisol made in the body.

How to use

Read the Patient Information Leaflet if available from your pharmacist before you start using pasireotide and before each injection. If you have any questions, ask your doctor or pharmacist.

This medication is given by injection into a muscle in the buttocks by a health care professional. It is given as directed by your doctor, usually once every 4 weeks (28 days).

The dosage is based on your medical condition, lab tests, and response to treatment.

Use this medication regularly to get the most benefit from it. To help you remember, mark your calendar with a reminder.

Tell your doctor if your condition does not get better or if it gets worse.

Side effects

Dizziness, headache, hair loss, muscle pain, gas, bloating, or diarrhea may occur. Pain, swelling, itchiness, redness, or irritation at the injection site may also occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

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.

This medication may cause changes in blood sugar, especially if you have diabetes. Symptoms of high blood sugar include increased thirst and urination. Symptoms of low blood sugar include sudden sweating, shaking, fast heartbeat, hunger, blurred vision, dizziness, or tingling hands/feet. Follow your doctor's instructions to treat low blood sugar (for example, by eating a quick source of sugar such as glucose gel/tablets, table sugar, honey, or drinking fruit juice or non-diet soda). Tell your doctor right away if you experience symptoms of high or low blood sugar while using this medication. Monitor your blood sugar levels as directed by your doctor. Your doctor may need to adjust your diabetes medications.

Tell your doctor right away if you have any serious side effects, including:

  • slow heartbeat
  • unusual tiredness
  • nausea/vomiting
  • weight loss
  • change in stool color
  • signs of liver/gall bladder disease (such as loss of appetite, stomach/abdominal pain, yellowing eyes/skin, dark urine)

Get medical help right away if you have any very serious side effects, including:

  • fast/irregular heartbeat
  • severe dizziness
  • fainting

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:

  • rash
  • itching/swelling (especially of the face/tongue/throat)
  • severe dizziness
  • trouble breathing

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.

Precautions

Before using pasireotide, 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:

  • liver disease
  • diabetes
  • heart block
  • gall bladder disease (such as gallstones)

Pasireotide 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 pasireotide, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions:

  • certain heart problems (heart failure, slow heartbeat, QT prolongation in the EKG)
  • family history of certain heart problems (QT prolongation in the EKG, sudden cardiac death)

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. Talk to your doctor about using pasireotide safely.

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).

Older adults may be more sensitive to the side effects of this drug, especially QT prolongation (see above).

Treatment with this medication may improve fertility in women and may lead to unintended pregnancy. Ask your doctor for more details.

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. Consult your doctor before breastfeeding.

Drug interactions

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.

Overdose

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 1-800-222-1222. Canada residents can call 1-844-764-7669.

Notes

Do not share this medication with others.

Lab and/or medical tests (such as growth hormone levels, EKG, blood sugar tests, hemoglobin A1c, liver function, mineral levels in the blood, hormonal levels including cortisol and thyroid) should be done before you start using this medication and while you are using it. Keep all medical and lab appointments. Consult your doctor for more details.

Missed dose

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. Do not double the dose to catch up.

Storage

Store in the refrigerator. Do not freeze. 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.

Important note

HOW TO USE THIS INFORMATION: 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.

Information last revised October 2024.

Selected from NATIONAL DRUG DATA FILE (NDDF) data included with permission and copyrighted by First Databank, Inc., 2019. This copyrighted material has been downloaded from a licensed data provider.

The above information is intended to supplement, not substitute for, the expertise and judgment of your health care professional. You should consult your health care professional before taking any drug, changing your diet, or commencing or discontinuing any course of treatment.