Feldene treats minor pain and inflammation. To avoid stomach upset, take this medication with food.

Feldene Overview


Feldene is a prescription medication used to relieve pain, tenderness, swelling, and stiffness of osteoarthritis and rheumatoid arthritis. Feldene belongs to a group of medications called nonsteroidal anti-inflammatory drugs (NSAIDs). It works by blocking substances called prostaglandins that cause pain and inflammation.

This medication comes in capsule form. It is taken once or twice daily, with or after food to minimize stomach upset.

Common side effects include stomach pain, constipation, and diarrhea. Feldene may cause drowsiness. Do not drive or operate heavy machinery until you know how it affects you.


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  • Arthritis, Rheumatoid
  • Inflammation
  • Osteoarthritis
  • Spondylitis, Ankylosing
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Feldene Cautionary Labels


Uses of Feldene

Feldene is a prescription medication used:

  • For relief of the signs and symptoms of osteoarthritis.
  • For relief of the signs and symptoms of rheumatoid arthritis.

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


Feldene Drug Class

Feldene is part of the drug class:

Side Effects of Feldene

Common side effects include:

  • indigestion
  • heartburn
  • stomach pain
  • diarrhea
  • constipation
  • gas
  • headache
  • dizziness
  • nervousness
  • drowsiness

This is not a complete list of Feldene side effects. Ask your doctor or pharmacist for more information.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.


Feldene Interactions

Tell your doctor about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements. Especially tell your doctor if you take:

  • aspirin
  • methotrexate (Rheumatrex, Trexall)
  • angiotensin-converting enzyme (ACE) blockers such as
    • benazepril (Lotensin, Lotensin HCT)
    • captopril (Capoten, Capozide)
    • enalapril (Vasotec, Vaseretic)
    • fosinopril (Monopril, Monopril HCT)
    • lisinopril (Prinivil, Prinzide, Zestril, Zestoretic)
    • moexipril (Univasc, Uniretic)
    • quinapril (Accupril, Accuretic, Quinaretic)
    • ramipril (Altace)
    • trandolapril (Mavik, Tarka)
  • diuretics such as
    • acetazolamide (Diamox)
    • amiloride (Midamor)
    • bumetanide (Bumex)
    • chlorothiazide (Diuril)
    • chlorthalidone (Thalitone)
    • ethacrynic acid (Edecrin)
    • furosemide (Lasix)
    • hydrochlorothiazide (Microzide, HCTZ)
    • metolazone (Zaroxolyn)
    • torsemide (Demadex)
    • triamterene (Dyrenium, Dyazide, Maxzide)
  • warfarin (Coumadin, Jantoven)
  • lithium (Lithobid)
  • highly protein bound drugs such as phenytoin (Dilantin, Phenytek)

This is not a complete list of Feldene drug interactions. Ask your doctor or pharmacist for more information.

Feldene Precautions

Serious side effects have been reported with Feldene including the following:

  • Cardiovascular thrombotic events. Feldene can increase your risk of cardiovascular and heart diseases such as strokes and myocardial infarctions, which can lead to death. Tell your doctor if you have a history of heart disease.
  • Gastrointestinal effects. Feldene can cause digestive tract problems such as ulcers, bleeding, inflammation, and perforations (small holes). Tell your doctor if you have a history of digestive problems, or if you smoke or frequently drink alcohol. Alert your doctor if you take anticoagulants (blood-thinners) or corticosteroids such as prednisone.
  • Renal effects. Kidney damage can result from the use of Feldene. Tell your doctor if you have a history of kidney disease or take ACE inhibitors (such as lisinopril and enalapril) or diuretics (water pills).
  • Hypersensitivity reaction. An allergic reaction to Feldene can occur. Symptoms of a hypersensitivity reaction include:
    • hives
    • rash
    • difficulty breathing or swallowing
    • itching
    • swelling
  • Adverse skin reactions. Feldene can lead to dangerous skin reactions. Symptoms of a skin reaction include:
    • rash
    • red, itchy, or scaly skin
    • blisters
    • fever
  • Pregnancy. Feldene  should not be taken in late pregnancy.

Feldene can cause drowsiness. Do not drive or operate heavy machinery until you know how Feldene affects you.

Do not take Feldene if you:

  • are allergic to Feldene or to any of its ingredients
  • have experienced asthma, urticaria, or allergic-type reactions after taking aspirin or other NSAIDs. Severe, rarely fatal, anaphylactic-like reactions to NSAIDs have been reported in such patients.
  • being treated for peri-operative pain in the setting of coronary artery bypass graft (CABG) surgery

Feldene Food Interactions

Medications can interact with certain foods. In some cases, this may be harmful and your doctor may advise you to avoid certain foods. In the case of Feldene, there are no specific foods that you must exclude from your diet when receiving this medication.

Inform MD

Before taking Feldene, tell your doctor about all of your medical conditions. Especially tell your doctor if you:

  • are allergic to Feldene or to any of its ingredients
  • about all of the medicines you take. NSAIDs such as Feldene and some other medicines can interact with each other and cause serious side effects. Keep a list of your medicines to show to your healthcare provider and pharmacist.
  • if you are pregnant. NSAID medicines should not be used by pregnant women late in their pregnancy.
  • if you are breastfeeding. Talk to your doctor.
  • have or have ever had asthma, especially if you also have frequent stuffy or runny nose or nasal polyps (swelling of the lining of the nose); swelling of the hands, feet, ankles, or lower legs
  • have liver or kidney disease
  • if you are having surgery, including dental surgery

Talk to your doctor about the risks and benefits of taking Feldene if you are 65 years of age or older.

  • Older adults should usually take lower doses of Feldene for short periods of time because higher doses taken regularly may not be more effective and are more likely to cause serious side effects.

Feldene and Pregnancy

Tell your doctor if you are pregnant or plan to become pregnant.

The FDA categorizes medications based on safety for use during pregnancy. Five categories - A, B, C, D, and X, are used to classify the possible risks to an unborn baby when a medication is taken during pregnancy.

Feldene falls into category C. There are no well-controlled studies that have been done in pregnant women. Feldene capsules are not recommended for use in pregnant women since safety has not been established in humans. Feldene should be used during pregnancy only if the possible benefit outweighs the possible risk to the unborn baby.

In late pregnancy, as with other NSAIDs, Feldene should be avoided.

Feldene and Lactation

Tell your doctor if you are breastfeeding or plan to breastfeed.

Feldene has been detected in human breast milk. Because of the possibility for adverse reactions in nursing infants from Feldene, a choice should be made whether to stop nursing or to stop use of this medication. Feldene is not recommended for use in nursing mothers.


Feldene Usage

Take Feldene exactly as prescribed.

Feldene comes in capsule form. It is taken once or twice daily, with or after food to minimize stomach upset.

If you miss a dose, take the missed dose as soon as you remember. If it is almost time for the next dose, skip the missed dose and take your next dose at the regular time. Do not take two doses of Feldene at the same time.

Feldene Dosage

Take this medication exactly as prescribed by your doctor. Follow the directions on your prescription label carefully.

The dose your doctor recommends may be based on the following:

  • the condition being treated
  • other medical conditions you have
  • other medications you are taking
  • how you respond to this medication
  • your liver function
  • your age

The recommended dose of Feldene (piroxicam) for the relief of rheumatoid arthritis and osteoarthritis is 20 mg given orally once per day.

  • If needed, the daily dose may be divided.

Feldene Overdose

If you take too much Feldene, call your healthcare provider or local Poison Control Center, or seek emergency medical attention right away.

Other Requirements

  • Store Feldene at 20° to 25°C (68° to 77°F).
  • Keep this and all medicines out of the reach of children.


Feldene FDA Warning

Cardiovascular Risk

  • NSAIDs may cause an increased risk of serious cardiovascular thrombotic events, myocardial infarction, and stroke, which can be fatal. This risk may increase with duration of use. Patients with cardiovascular disease or risk factors for cardiovascular disease may be at greater risk.
  • Feldene is contraindicated for the treatment of peri-operative pain in the setting of coronary artery bypass graft (CABG) surgery.

Gastrointestinal Risk

  • NSAIDs cause an increased risk of serious gastrointestinal adverse events including bleeding, ulceration, and perforation of the stomach or intestines, which can be fatal. These events can occur at any time during use and without warning symptoms. Elderly patients are at greater risk for serious gastrointestinal events.