Relafen (Nabumetone) Drug Information: Overdosage and Contraindications

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May 27, 2012

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Osteoarthritis »

Osteoarthritis facts

Osteoarthritis is a joint inflammation that results from cartilage degeneration.
Osteoarthritis can be caused by aging, heredity, and injury from trauma or disease.
The most common symptom of osteoarthritis is pain in the affected joint(s) after repetitive use.
There is no blood test for the diagnosis of osteoarthritis.
The goal of treatment in osteoarthritis is to reduce joint pain and inflammation while improving and maintaining joint function.

What is osteoarthritis?

Osteoarthritis is a form of arthritis that features the breakdown and eventual loss of the cartilage of one or more joints. Cartilage is a protein substance that serves as a "cushion" between the bones of the joints. Among the over 100 different types of arthritis conditions, osteoarthritis is the most common, affecting over 25 million people in the United Stat...

Read the Osteoarthritis article »

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OVERDOSE

Symptoms following acute NSAIDs overdoses are usually limited to lethargy, drowsiness, nausea, vomiting, and epigastric pain, which are generally reversible with supportive care. Gastrointestinal bleeding can occur. Hypertension, acute renal failure, respiratory depression, and coma may occur, but are rare. Anaphylactoid reactions have been reported with therapeutic ingestion of NSAIDs, and may occur following an overdose.

Patients should be managed by symptomatic and supportive care following a NSAIDs overdose. There are no specific antidotes. Emesis and/or activated charcoal (60 to 100 grams in adults, 1 to 2 g/kg in children), and/or osmotic cathartic may be indicated in patients seen within 4 hours of ingestion with symptoms or following a large overdose (5 to 10 times the usual dose). Forced diuresis, alkalinization of urine, hemodialysis, or hemoperfusion may not be useful due to high protein binding.

There have been overdoses of up to 25 grams of RELAFEN (nabumetone) reported with no long-term sequelae following standard emergency treatment (i.e., activated charcoal, gastric lavage, IV H -blockers, etc.).

CONTRAINDICATIONS

RELAFEN (nabumetone) is contraindicated in patients with known hypersensitivity to nabumetone or its excipients.

RELAFEN (nabumetone) should not be given to patients who 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 (see WARNINGS, Anaphylactoid Reactions, and PRECAUTIONS, General, Preexisting Asthma).

RELAFEN (nabumetone) is contraindicated for the treatment of peri-operative pain in the setting of coronary artery bypass graft (CABG) surgery (see WARNINGS).

Last reviewed on RxList: 6/8/2007
This monograph has been modified to include the generic and brand name in many instances.