Naproxen Sodium

NAPROXEN SODIUM- naproxen sodium tablet, film coated, extended release
Actavis Pharma, Inc.

WARNING: RISK OF SERIOUS CARDIOVASCULAR AND GASTROINTESTINAL EVENTS

Cardiovascular Thrombotic Events

  • Nonsteroidal anti-inflammatory drugs (NSAIDs) cause an increased risk of serious cardiovascular thrombotic events, including myocardial infarction and stroke, which can be fatal. This risk may occur early in treatment and may increase with duration of use [ see Warnings and Precautions (5.1) ] .
  • Naproxen is contraindicated in the setting of coronary artery bypass graft (CABG) surgery [ see Contraindications (4) and Warnings and Precautions (5.1) ] .

Gastrointestinal Bleeding, Ulceration, and Perforation

  • NSAIDs cause an increased risk of serious gastrointestinal (GI) 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 and patients with a prior history of peptic ulcer disease and/or GI bleeding are at greater risk for serious GI events [ see Warnings and Precautions (5.2) ] .

1 INDICATIONS AND USAGE

Naproxen sodium extended-release tablets are indicated for the treatment of:

  • rheumatoid arthritis (RA)
  • osteoarthritis (OA)
  • ankylosing spondylitis (AS)
  • tendinitis, bursitis
  • acute gout
  • primary dysmenorrhea (PD)
  • the relief of mild to moderate pain

[see Warnings and Precautions (5)].

2 DOSAGE AND ADMINISTRATION

2.1 General Dosing Instructions

Carefully consider the potential benefits and risks of naproxen and other treatment options before deciding to use naproxen sodium extended-release tablets. Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals [see Warnings and Precautions (5)].

After observing the response to initial therapy with naproxen sodium extended-release tablets, the dose and frequency should be adjusted to suit an individual patient’s needs.

2.2 Rheumatoid Arthritis, Osteoarthritis, and Ankylosing Spondylitis

The recommended starting dose of naproxen sodium extended-release tablets in adults is two naproxen sodium extended-release 375 mg tablets (750 mg) once daily, one naproxen sodium extended-release 750 mg (750 mg) once daily, or two naproxen sodium extended-release 500 mg tablets (1,000 mg) once daily. Patients already taking naproxen 250 mg, 375 mg, or 500 mg twice daily (morning and evening) may have their total daily dose replaced with naproxen sodium extended-release tablets as a single daily dose.

During long-term administration, the dose of naproxen sodium extended-release tablets may be adjusted up or down depending on the clinical response of the patient. In patients who tolerate lower doses of naproxen sodium extended-release tablets well, the dose may be increased to two naproxen sodium extended-release 750 mg tablets (1,500 mg), or three naproxen sodium extended-release 500 mg tablets (1,500 mg) once daily for limited periods when a higher level of anti-inflammatory/analgesic activity is required. When treating patients, especially at the higher dose levels, the physician should observe sufficient increased clinical benefit to offset the potential increased risk [see Clinical Pharmacology (12.3)]. The lowest effective dose should be sought and used in every patient. Symptomatic improvement in arthritis usually begins within one week; however, treatment for two weeks may be required to achieve a therapeutic benefit.

2.3 Management of Pain, Primary Dysmenorrhea, and Acute Tendinitis and Bursitis

The recommended starting dose is two naproxen sodium extended-release 500 mg tablets (1,000 mg) once daily. For patients requiring greater analgesic benefit, two naproxen sodium extended-release 750 mg tablets (1,500 mg) or three naproxen sodium extended-release 500 mg tablets (1,500 mg) may be used for a limited period. Thereafter, the total daily dose should not exceed two naproxen sodium extended-release 500 mg tablets (1,000 mg).

2.4 Acute Gout

The recommended dose on the first day is two to three naproxen sodium extended-release 500 mg tablets (1,000 to 1,500 mg) once daily, followed by two naproxen sodium extended-release 500 mg tablets (1,000 mg) once daily, until the attack has subsided.

2.5 Dosage Adjustments in Patients with Hepatic Impairment

A lower dose should be considered in patients with renal or hepatic impairment or in elderly patients [see Warnings and Precautions (5.3)]. Studies indicate that although total plasma concentration of naproxen is unchanged, the unbound plasma fraction of naproxen is increased in the elderly. Caution is advised when high doses are required and some adjustment of dosage may be required in elderly patients. As with other drugs used in the elderly it is prudent to use the lowest effective dose.

3 DOSAGE FORMS AND STRENGTHS

Naproxen sodium extended-release tablets are available as follows:

375 mg: white, unscored, round tablet imprinted with “Andrx 825 ”, in bottles of 100, NDC 62037-825-01. Each tablet contains 412.5 mg naproxen sodium, USP equivalent to 375 mg naproxen.

500 mg: white, unscored, capsule-shaped tablet imprinted with “Andrx 826 ”; in bottles of 75, NDC 62037-826-75. Each tablet contains 550 mg naproxen sodium, USP equivalent to 500 mg naproxen.

750 mg: white, unscored, capsule-shaped, film-coated tablets printed with “A750 ” on one side and plain on the other side, in bottles of 30, NDC 62037-827-30. Each tablet contains 825 mg naproxen sodium, USP equivalent to 750 mg naproxen.

4 CONTRAINDICATIONS

Naproxen is contraindicated in the following patients:

  • Known hypersensitivity (e.g., anaphylactic reactions and serious skin reactions) to naproxen or any components of the drug product [see Warnings and Precautions ( 5.7, 5.9)]
  • History of asthma, urticaria, or other allergic-type reactions after taking aspirin or other NSAIDs. Severe, sometimes fatal, anaphylactic reactions to NSAIDs have been reported in such patients [see Warnings and Precautions ( 5.7, 5.8)]
  • In the setting of coronary artery bypass graft (CABG) surgery [see Warnings and Precautions (5.1)]

5 WARNINGS AND PRECAUTIONS

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