NAPROXEN - naproxen tablet
Amneal Pharmaceuticals
Rx Only
Cardiovascular Risk
NSAIDs may cause an increased risk of serious cardiovascular thrombotic events, myocardial infarction, and stroke, which can be fate. This risk may increase with duration of use. Patient with cardiovascular disease or risk factor for cardiovascular disease may be at great risk (see WARNINGS).
Naproxen as Naproxen Tablets, USP is contraindicated for the treatment of peri0operative pain in the setting of coronary artery bypass graft (CABG) surgery (see WARNINGS).
Gastrointestinal Risk
NSAIDs cause increased risk of serious gastrointestinal adverse event including, 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 (see WARNINGS).
DESCRIPTION
Naproxen is a proprionic acid derivative related to the arylacetic acid group of nonsteroidal anti-inflammatory drugs.
The chemical name for naproxen is (S)-6-methoxy-?-methyl-2-naphthaleneacetic acid. Naproxen has the following structure:
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Naproxen has a molecular weight of 230.26 and a molecular formula of C14 H14 O3 .
Naproxen is an odorless, white to off-white crystalline substance. It is lipid-soluble, practically insoluble in water at low pH and freely soluble in water at high pH. The octanol/water partition coefficient of naproxen at pH 7.4 is 1.6 to 1.8.
Naproxen Tablets, USP are available as white tablets containing 250 mg of naproxen, white tablets containing 375 mg of naproxen and white tablets containing 500 mg of naproxen for oral administration. The inactive ingredients are Croscarmellose Sodium, Povidone and Magnesium Stearate.
CLINICAL PHARMACOLOGY
Pharmacodynamics
Naproxen is a nonsteroidal anti-inflammatory drug (NSAID) with analgesic and antipyretic properties. The mechanism of action of the naproxen anion, like that of other NSAIDs, is not completely understood but may be related to prostaglandin synthetase inhibition. INDICATIONS AND USAGE
Carefully consider the potential benefits and risks of Naproxen Tablets, USP and other treatment options before deciding to use Naproxen Tablets, USP. Use the lowest effective dose for the shortest duration consistent with individual patient treatment goals (see WARNINGS).
Naproxen as Naproxen Tablets, USP is indicated:
For the relief of the signs and symptoms of rheumatoid arthritis
For the relief of the signs and symptoms of osteoarthritis
For the relief of the signs and symptoms of ankylosing spondylitis
For the relief of the signs and symptoms of juvenile arthritis
For relief of the signs and symptoms of tendonitis
For relief of the signs and symptoms of bursitis
For relief of the signs and symptoms of acute gout
For the management of pain
For the management of primary dysmenorrhea DOSAGE AND ADMINISTRATION
Carefully consider the potential benefits and risks of Naproxen Tablets, USP and other treatment options before deciding to use Naproxen Tablets, USP. Use the lowest effective dose for the shortest duration consistent with individual patient treatment goals (see WARNINGS).
After observing the response to initial therapy with Naproxen Tablets, USP, the dose and frequency should be adjusted to suit an individual patient's needs.
Different dose strengths and formulations (i.e., tablets, suspension) of the drug are not necessarily bioequivalent. This difference should be taken into consideration when changing formulation.
Although naproxen tablets, naproxen suspension, naproxen delayed-release tablets, and naproxen sodium tablets all circulate in the plasma as naproxen, they have pharmacokinetic differences that may affect onset of action. Onset of pain relief can begin within 1 hour in patients taking naproxen.
The recommended strategy for initiating therapy is to choose a formulation and a starting dose likely to be effective for the patient and then adjust the dosage based on observation of benefit and/or adverse events. A lower dose should be considered in patients with renal or hepatic impairment or in elderly patients (see WARNINGS and PRECAUTIONS).
