Used to treat hyperuricemia (high uric acid in the blood) in patients with gout. This medicine is a xanthine oxidase inhibitor.
There may be other brand names for this medicine.
When This Medicine Should Not Be Used
You should not use this medicine if you have had an allergic reaction to febuxostat, or if you are using azathioprine (Azasan®, Imuran®) or mercaptopurine (Purinethol®).
How to Use This Medicine
- Your doctor will tell you how much of this medicine to use and how often. Do not use more medicine or use it more often than your doctor tells you to.
- You may take this medicine with or without food. This medicine may also be taken with antacids.
- At first, when you start using this medicine you may have more gout attacks. Keep using this medicine even if this happens. Your doctor may give you other medicines (such as colchicine or pain medicines [NSAIDs]) to help prevent these gout attacks.
- This medicine comes with patient instructions. Read and follow these instructions carefully. Ask your doctor or pharmacist if you have any questions.
If a dose is missed:
- If you miss a dose or forget to use your medicine, use it as soon as you can. If it is almost time for your next dose, wait until then to use the medicine and skip the missed dose. Do not use extra medicine to make up for a missed dose.
How to Store and Dispose of This Medicine
- Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
- Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
- Keep all medicine away from children and never share your medicine with anyone.
Drugs and Foods to Avoid
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
- Make sure your doctor knows if you are also using theophylline (Theo-24®, Theo-Dur®, Uniphyl®).
Warnings While Using This Medicine
- Make sure your doctor knows if you are pregnant or breastfeeding, have kidney disease, liver disease, a history of heart disease or stroke, or if you have secondary hyperuricemia from Lesch-Nyhan syndrome (rare, inherited enzyme problem), malignant disease (cancer), or you are an organ transplant recipient.
- This medicine may increase your risk of having serious heart and blood vessel problems such as heart attack or stroke. Check with your doctor right away if you start having chest pain, trouble with breathing, sudden or severe headache, or problems with vision, speech, or walking.
- Your doctor will need to check your blood at regular visits while you are using this medicine. Be sure to keep all appointments.
Possible Side Effects While Using This Medicine
Call your doctor right away if you notice any of these side effects:
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Blistering, peeling, or red skin rash.
- Change in how much or how often you urinate.
- Chest pain, shortness of breath, or coughing up blood.
- Dark-colored urine or pale stools.
- Dry mouth, increased thirst, or muscle cramps.
- Fast, slow, or uneven heartbeat.
- Fever, chills, cough, sore throat, and body aches.
- Joint or muscle pain.
- Lightheadedness or fainting.
- Numbness or weakness in your arm or leg, or on one side of your body.
- Pain in your lower leg (calf).
- Sudden and severe stomach pain, nausea, or vomiting.
- Sudden or severe headache, problems with vision, speech, or walking.
- Swelling in your hands, ankles, or feet.
- Unusual bleeding, bruising, or weakness.
- Yellowing of your skin or the whites of your eyes.
If you notice these less serious side effects, talk with your doctor:
- Anxiety, depression, or trouble sleeping.
- Blurred vision.
- Constipation, heartburn, indigestion, loss of appetite, mild nausea, or stomach pain.
- Dizziness or drowsiness.
- Hair loss.
- Mild skin rash.
- Numbness, tingling, or burning pain in your hands, arms, legs, or feet.
- Warmth or redness in your face, neck, arms, or upper chest.
- Weight changes.