- What is nabumetone, and how does it work (mechanism of action)?
- Is nabumetone available as a generic drug?
- Do I need a prescription for nabumetone?
- What are the side effects of nabumetone?
- What is the dosage for nabumetone?
- Is nabumetone safe to take if I'm pregnant or breastfeeding?
- What else should I know about nabumetone?
What is nabumetone, and how does it work (mechanism of action)?
Nabumetone belongs to a class of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs). Other members of this class include ibuprofen (Motrin), indomethacin (Indocin), naproxen (Aleve) and several others. These drugs are used for the management of mild to moderate pain, fever, and inflammation. They work by reducing the levels of prostaglandins, chemicals produced by the body that are responsible for pain, fever and inflammation. NSAIDs block the enzyme that makes prostaglandins (cyclooxygenase), resulting in lower concentrations of prostaglandins. As a consequence, inflammation, pain and fever are reduced. Since the response to different NSAIDs varies from patient to patient, it is not unusual for a doctor to try different NSAIDs for any given condition. The FDA approved nabumetone in December 1991.
What are the side effects of nabumetone?
Most patients, benefit from nabumetone and other NSAIDs with few side effects. However, serious side effects can occur, and generally tend to be dose-related. Therefore, it is advisable to use the lowest effective dose to minimize side effects. The most common side effects of nabumetone involve the gastrointestinal system, and these include:
- abdominal pain,
- cramping,
- nausea,
- gastritis,
- serious gastrointestinal bleeding, and
- liver toxicity.
Sometimes ulceration and bleeding can occur without any abdominal pain. Black, tarry stools, weakness, and dizziness upon standing may be the only signs of internal bleeding. Some studies have shown that nabumetone may have a lower risk of gastrointestinal side effects than the other NSAID medications.
Other important side effects caused by nabumetone include:
- rash,
- kidney impairment, and
- ringing in the ears.
NSAIDs reduce the ability of blood to clot and therefore increase bleeding after an injury. Nabumetone should be avoided by patients with a history of exacerbation of asthma, hives, or other allergic reactions to aspirin or other NSAIDs. Rare but severe allergic reactions have been reported in such individuals. Fluid retention (edema), blood clots, heart attacks, hypertension and heart failure have also been associated with the use of NSAIDs.

QUESTION
The term arthritis refers to stiffness in the joints. See AnswerWhat is the dosage for nabumetone?
May be taken with or without food. The recommended starting dose for osteoarthritis or rheumatoid arthritis is 1000 mg daily as a single dose. Some patients may respond better to 1500 or 2000 mg daily. Doses may also be divided and administered twice daily. The lowest effective dose should be used.
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Is nabumetone safe to take if I'm pregnant or breastfeeding?
It is not known whether nabumetone is excreted in breast milk.
Summary
Nabumetone is a drug prescribed to treat inflammation and pain resulting from rheumatoid arthritis and osteoarthritis. Side effects, drug interactions, and patient safety information should be reviewed prior to taking this medication.
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Related Disease Conditions
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Rheumatoid Arthritis (RA)
Rheumatoid arthritis (RA) is an autoimmune disease that causes chronic inflammation of the joints, the tissue around the joints, as well as other organs in the body. Early RA signs and symptoms include anemia, both sides of the body affected (symmetric), depression, fatigue, fever, joint deformity, joint pain, joint redness, joint stiffness, joint swelling, joint tenderness, joint warmth, limping, loss of joint function, loss of joint range of motion, and polyarthritis.
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Lower Back Pain (Lumbar Spine Pain)
There are many causes of back pain. Pain in the low back can relate to the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis, and abdomen, and the skin covering the lumbar area.
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Osteoarthritis (OA)
Osteoarthritis is a type of arthritis caused by inflammation, breakdown, and eventual loss of cartilage in the joints. Also known as degenerative arthritis, osteoarthritis can be caused by aging, heredity, and injury from trauma or disease.
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Arthritis (Joint Inflammation)
Arthritis is inflammation of one or more joints. When joints are inflamed they can develop stiffness, warmth, swelling, redness and pain. There are over 100 types of arthritis, including osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, psoriatic arthritis, lupus, gout, and pseudogout.
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Knee Bursitis
Bursitis of the knee results when any of the three fluid-filled sacs (bursae) become inflamed due to injury or strain. Symptoms and signs include pain, swelling, warmth, tenderness, and redness. Treatment of knee bursitis depends on whether infection is involved. If the knee bursa is not infected, knee bursitis may be treated with ice compresses, rest, and anti-inflammatory and pain medications.
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Mixed Connective Tissue Disease (MCTD)
Connective tissue diseases are disorders featuring abnormalities involving the collagen and elastin. Connective tissue diseases that are strictly inheritable include Marfan syndrome and Ehlers-Danlos syndrome. The classic immune-related connective tissue diseases include systemic lupus erythematosus, rheumatoid arthritis, scleroderma, polymyositis, and dermatomyositis. Treatment is often directed at suppressing the inflammation present in the tissues by using anti-inflammatory and immunosuppressive medications.
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Nonsteroidal Anti-inflammatory Drugs and Ulcers
Nonsteroidal anti-inflammatory drugs (NSAIDs) are prescribed medications for the treatment of inflammatory conditions. Examples of NSAIDs include aspirin, ibuprofen, naproxen, and more. One common side effect of NSAIDs is peptic ulcer (ulcers of the esophagus, stomach, or duodenum). Side effects, drug interactions, warnings and precautions, and patient safety information should be reviewed prior to taking NSAIDs.
Treatment & Diagnosis
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Medications & Supplements
- Nonsteroidal Anti-inflammatory Drugs (NSAIDs)
- Drugs: Questions to Ask Your Doctor or Pharmacist about Your Drugs
- ibuprofen
- Drug Interactions
- celecoxib (Celebrex)
- naproxen
- indomethacin, Indocin, Indocin-SR (Discontinued Brand in U.S.)
- flurbiprofen (Ansaid)
- diflunisal (Dolobid)
- etodolac, Lodine (Discontinued)
- choline magnesium salicylate, Trilisate
- fenoprofen (Nalfon)
- valdecoxib, Bextra
Prevention & Wellness
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REFERENCE:
FDA Prescribing Information