Generic Name: Allopurinol Tablets (AL oh PURE i nol)
Brand Name: Zyloprim
Medically reviewed on May 2, 2018
Uses of Allopurinol Tablets:
- It is used to lower uric acid in the blood.
- It is used to prevent high uric acid levels during chemo.
- It may be given to you for other reasons. Talk with the doctor.
What do I need to tell my doctor BEFORE I take Allopurinol Tablets?
- If you have an allergy to allopurinol or any other part of this medicine (allopurinol tablets).
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
This medicine may interact with other drugs or health problems.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take this medicine (allopurinol tablets) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Allopurinol Tablets?
- Tell all of your health care providers that you take this medicine (allopurinol tablets). This includes your doctors, nurses, pharmacists, and dentists.
- Avoid driving and doing other tasks or actions that call for you to be alert until you see how this medicine (allopurinol tablets) affects you.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- This medicine may affect how much of some other drugs are in your body. If you are taking other drugs, talk with your doctor. You may need to have your blood work checked more closely while taking this medicine (allopurinol tablets) with your other drugs.
- Follow the diet and workout plan that your doctor told you about.
- Talk with your doctor before you drink alcohol.
- It may take several weeks to see the full effects.
- The chance of gout attacks may be higher for a few months after you start taking this medicine (allopurinol tablets). Do not stop taking this medicine (allopurinol tablets). You may be given other drugs to help you keep from getting gout attacks. Talk with your doctor.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using this medicine (allopurinol tablets) while you are pregnant.
- Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.
How is this medicine (Allopurinol Tablets) best taken?
Use this medicine (allopurinol tablets) as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- Take after meals.
- To gain the most benefit, do not miss doses.
- Keep taking this medicine (allopurinol tablets) as you have been told by your doctor or other health care provider, even if you feel well.
- Keep taking this medicine (allopurinol tablets) even if you are having a gout attack.
- Drink lots of noncaffeine liquids unless told to drink less liquid by your doctor.
What do I do if I miss a dose?
- Take a missed dose as soon as you think about it.
- If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
See also: Dosage Information (in more detail)
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of kidney problems like unable to pass urine, change in how much urine is passed, blood in the urine, or a big weight gain.
- Pain when passing urine or blood in urine.
- Fever or chills.
- Sore throat.
- Eye irritation.
- Joint pain.
- Any unexplained bruising or bleeding.
- Feeling very tired or weak.
- Liver problems have happened with this medicine (allopurinol tablets). Sometimes, liver problems have not gone back to normal after this medicine (allopurinol tablets) was stopped. Call your doctor right away if you have signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- A very bad skin reaction (Stevens-Johnson syndrome/toxic epidermal necrolysis) may happen. It can cause very bad health problems that may not go away, and sometimes death. Get medical help right away if you have signs like red, swollen, blistered, or peeling skin (with or without fever); red or irritated eyes; or sores in your mouth, throat, nose, or eyes.
What are some other side effects of Allopurinol Tablets?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Loose stools (diarrhea).
- Upset stomach.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
See also: Side effects (in more detail)
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Allopurinol Tablets?
- Store at room temperature.
- Protect tablets from light.
- Store in a dry place. Do not store in a bathroom.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about this medicine (allopurinol tablets), please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about allopurinol
- Allopurinol Side Effects
- During Pregnancy or Breastfeeding
- Dosage Information
- Drug Images
- Drug Interactions
- Compare Alternatives
- Support Group
- Pricing & Coupons
- En Español
- 56 Reviews – Add your own review/rating
- Drug class: antigout agents
- Allopurinol Injection
- Allopurinol (Advanced Reading)
- Allopurinol Intravenous (Advanced Reading)