Class Name(s):

• 10:00 Antineoplastic Agents

Pronunciation:

• (ay za site' i deen)

Brand Name(s):

• Vidaza^®

Other Name(s):

• Ladakamycin

WHY is this medicine prescribed?

Azacitidine is used to treat myelodysplastic syndrome (a group of conditions in which the bone marrow produces blood cells that are misshapen and does not produce enough healthy blood cells). Azacitidine is in a class of medications called demethylation agents. It works by helping the bone marrow to produce normal blood cells and by killing abnormal cells in the bone marrow.

HOW should this medicine be used?

Azacitidine comes as a powder to be mixed with water and injected subcutaneously (under the skin) or intravenously (into a vein) by a doctor or nurse in a medical office or hospital outpatient department. It is usually injected once a day for 7 days. This treatment may be repeated every 4 weeks for as long as your doctor recommends. Treatment should usually be given for at least four cycles.

Your doctor may increase your dose of azacitidine after two cycles if your condition has not improved and if you have not experienced serious side effects of the medication. Your doctor may also need to delay your treatment or reduce your dose if you experience certain side effects. Be sure to tell your doctor how you are feeling during your treatment with azacitadine.

Your doctor will give you medication to prevent nausea and vomiting before you receive each dose of azacitadine.

Are there OTHER USES for this medication?

This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.

What SPECIAL PRECAUTIONS should I follow?

Before using azacitidine,

• tell your doctor and pharmacist if you are allergic to azacitidine, mannitol (Osmitrol, Resectisol), or any other medications.
• tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
• tell your doctor if you have a liver tumor. Your doctor may tell you not to take azacitidine.
• tell your doctor if you have or have ever had liver or kidney disease.
• tell your doctor if you are pregnant or plan to become pregnant, or if you plan to father a child. You or your partner should not become pregnant while you are using azacitidine. You should use birth control to prevent pregnancy in yourself or your partner during your treatment with azacitidine. Talk to your doctor about birth control methods that will work for you. If you or your partner become pregnant while using azacitidine, call your doctor. Azacitidine may harm the fetus.
• do not breastfeed while you are using azacitidine.
• if you are having surgery, including dental surgery, tell the doctor or dentist that you are using azacitidine.

What SPECIAL DIETARY instructions should I follow?

Unless your doctor tells you otherwise, continue your normal diet.

What should I do IF I FORGET to take a dose?

Call your doctor right away if you are unable to keep an appointment to receive a dose of azacitidine.

What SIDE EFFECTS can this medicine cause?

Azacitidine may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

• nausea
• vomiting
• diarrhea
• constipation
• sores on the mouth or tongue
• hemorrhoids
• stomach pain or tenderness
• heartburn
• loss of appetite
• weight loss
• headache
• dizziness
• weakness
• excessive tiredness
• difficulty falling asleep or staying asleep
• depression
• anxiety
• back, muscle, or joint pain
• muscle cramps
• sweating
• night sweats
• difficulty urinating or pain when urinating
• swelling of the hands, feet, ankles, or lower legs
• dry skin
• redness, pain, bruising, swelling, itching, lump, or change in the skin color in the place where the medication was injected

Some side effects can be serious. If you experience any of these symptoms, call your doctor immediately:

• pale skin
• shortness of breath
• fast heartbeat
• chest pain
• cough
• unusual bruising or bleeding
• nosebleeds
• bleeding gums
• small red or purple dots on the skin
• sore throat, fever, chills, or other signs of infection
• hives
• rash
• itching
• difficulty breathing or swallowing

Azacitidine may cause other side effects. Call your doctor if you have any unusual problems while using this medication.

What should I do in case of OVERDOSE?

In case of overdose, call the poison control helpline at 1-800-222-1222. Information is also available online at http://www.poisonhelp.org/help. If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at 911.

Symptoms of overdose may include:

• diarrhea
• nausea
• vomiting

What should I know about STORAGE and DISPOSAL of this medication?

This medication will be stored in the medical office or hospital where you receive your treatment.

What OTHER INFORMATION should I know?

Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your body's response to azacitidine.

Keep a written list of all of the prescription and nonprescription (over-the-counter) medicines, vitamins, minerals, and dietary supplements you are taking. Bring this list with you each time you visit a doctor or if you are admitted to the hospital. You should carry the list with you in case of emergencies.

This report on medications is for your information only, and is not considered individual patient advice. Because of the changing nature of drug information, please consult your physician or pharmacist about specific clinical use.

The American Society of Health-System Pharmacists, Inc. represents that the information provided hereunder was formulated with a reasonable standard of care, and in conformity with professional standards in the field. The American Society of Health-System Pharmacists, Inc. makes no representations or warranties, express or implied, including, but not limited to, any implied warranty of merchantability and/or fitness for a particular purpose, with respect to such information and specifically disclaims all such warranties. Users are advised that decisions regarding drug therapy are complex medical decisions requiring the independent, informed decision of an appropriate health care professional, and the information is provided for informational purposes only. The entire monograph for a drug should be reviewed for a thorough understanding of the drug's actions, uses and side effects. The American Society of Health-System Pharmacists, Inc. does not endorse or recommend the use of any drug. The information is not a substitute for medical care.

AHFS^® Patient Medication Information™ Copyright, 2025. The American Society of Health-System Pharmacists^®, 4500 East-West Highway, Suite 900, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.

Last Reviewed: September 1, 2010.