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Allopurinol Injection

(al oh pure' i nole)

WHY is this medicine prescribed?

Allopurinol injection is used to treat high levels of uric acid (a natural substance that builds up in the blood as tumors break down) in people with certain types of cancer who are being treated with chemotherapy medications who cannot take oral allopurinol. Allopurinol is in a class of medications called xanthine oxidase inhibitors. It works by reducing the production of uric acid in the body.

Are there OTHER USES for this medicine?

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

HOW should this medicine be used?

Allopurinol comes as a powder to be mixed with liquid to be injected intravenously (into a vein). It is usually injected once a day or every 6, 8, or 12 hours. Allopurinol injection is usually given 24 to 48 hours before chemotherapy is started.

Ask your pharmacist or doctor for a copy of the manufacturer's information for the patient.

What SPECIAL PRECAUTIONS should I follow?

Before receiving allopurinol injection,

tell your doctor and pharmacist if you are allergic to allopurinol, any other medications, or any of the ingredients in allopurinol injection. Ask your pharmacist for a list of the ingredients.
tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking while you are receiving allopurinol injection. Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
tell your doctor if you have or have ever had high blood pressure, diabetes, kidney or liver disease or heart failure.
tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while receiving allopurinol injection, call your doctor.
you should know that allopurinol may make you drowsy. Do not drive a car or operate machinery until you know how this medication affects you.

What SPECIAL DIETARY instructions should I follow?

Drink at least eight 8-ounce (240-milliter) cups of water or other liquids (64 ounces/2.72 liters total) each day while receiving allopurinol unless directed to do otherwise by your doctor.

What SIDE EFFECTS can this medicine cause?

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

pain or itching at injection site
nausea
diarrhea
drowsiness

Some side effects can be serious. If you experience any of these symptoms and call your doctor immediately or get emergency medical treatment:

rash, itching, or hives
peeling, blistering, or shedding skin
red or purple spots on skin
painful urination
blood in the urine
irritation of the eyes
swelling of the lips or mouth
fever or flu-like symptoms
swollen glands
yellowing of the skin or eyes, pain in the upper right part of the stomach, nausea, vomiting, itching, or extreme tiredness

Allopurinol injection may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.

If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online (http://www.fda.gov/Safety/MedWatch) or by phone (1-800-332-1088).

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 https://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.

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 allopurinol injection.

Before having any laboratory test, tell your doctor and the laboratory personnel that you are receiving allopurinol injection.

Ask your pharmacist any questions you have about allopurinol injection.

It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.

Brand Name(s): Aloprim^®; also available generically

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, 2024. 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.

Selected Revisions: September 15, 2023.

This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Ignite Healthwise, LLC.

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