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Naproxen
Overview
What is Naprosyn?
NAPROSYN Suspension (naproxen) is available as a light orange-colored opaque oral suspension containing 125 mg/5 mL of naproxen for oral administration.
Naproxen is a propionic acid derivative related to the arylacetic acid group of nonsteroidal anti-inflammatory drugs. The chemical name is (S)-6-methoxy-α-methyl-2-naphthaleneacetic acid. The molecular weight is 230.26 Its molecular formula is CHO, and it has the following chemical structure.
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.
The inactive ingredients in NAPROSYN Suspension include sucrose, magnesium aluminum silicate, sorbitol solution and sodium chloride (39 mg/5 mL, 1.5 mEq), methylparaben, fumaric acid, FD&C Yellow No. 6, imitation pineapple flavor, imitation orange flavor and purified water. The pH of the suspension ranges from 2.2 to 3.7.
What does Naprosyn look like?
What are the available doses of Naprosyn?
NAPROSYN (naproxen) Suspension: 125 mg/5 mL (contains 39 mg sodium)
What should I talk to my health care provider before I take Naprosyn?
Pregnancy
Infertility
Renal Impairment:
See 17 for PATIENT COUNSELING INFORMATION and Medication Guide.
How should I use Naprosyn?
NAPROSYN (naproxen) Suspension is indicated for: the relief of the signs and symptoms of:
the management of:
Carefully consider the potential benefits and risks of NAPROSYN Suspension and other treatment options before deciding to use NAPROSYN Suspension. Use the lowest effective dose for the shortest duration consistent with individual patient treatment goals
.
After observing the response to initial therapy with NAPROSYN Suspension, the dose and frequency should be adjusted to suit an individual patient’s needs.
Always use a calibrated measuring device when administering NAPROSYN suspension to ensure the dose is measured and administered accurately. A household teaspoon or tablespoon is not an adequate measuring device, especially when one-half of a teaspoonful is to be measured. Given the variability of the household spoon measure, it is strongly recommended that caregivers obtain and use a calibrated measuring device. Health care providers should recommend an appropriate measuring device that can measure and deliver the prescribed dose accurately, and instruct caregivers to use extreme caution in measuring the dosage.
Naproxen-containing products such as NAPROSYN suspension, and other naproxen products should not be used concomitantly since they all circulate in the plasma as the naproxen anion.
What interacts with Naprosyn?
Sorry No Records found
What are the warnings of Naprosyn?
Sorry No Records found
What are the precautions of Naprosyn?
Sorry No Records found
What are the side effects of Naprosyn?
Sorry No records found
What should I look out for while using Naprosyn?
NAPROSYN Suspension is contraindicated in the following patients:
What might happen if I take too much Naprosyn?
Symptoms following acute NSAID overdosages have been typically limited to lethargy, drowsiness, nausea, vomiting, and epigastric pain, which have been generally reversible with supportive care. Gastrointestinal bleeding has occurred. Hypertension, acute renal failure, respiratory depression, and coma have occurred, but were rare. A few patients have experienced convulsions, but it is not clear whether or not these were drug-related. It is not known what dose of the drug would be life threatening [
].
Manage patients with symptomatic and supportive care following an NSAID overdosage. There are no specific antidotes. Hemodialysis does not decrease the plasma concentration of naproxen because of the high degree of its protein binding. Consider emesis and/or activated charcoal (60 to 100 grams in adults, 1 to 2 grams per kg of body weight in pediatric patients) and/or osmotic cathartic in symptomatic patients seen within four hours of ingestion or in patients with a large overdosage (5 to 10 times the recommended dosage). Forced diuresis, alkalinization of urine, hemodialysis, or hemoperfusion may not be useful due to high protein binding.
For additional information about overdosage treatment contact a poison control center (1-800-222-1222).
How should I store and handle Naprosyn?
Storage and HandlingStore at 25°C (77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) (see USP Controlled Room Temperature).Storage and HandlingStore at 25°C (77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) (see USP Controlled Room Temperature).NAPROSYN Suspension: 125 mg/5 mL (contains 39 mg sodium): Available in 1 pint (473 mL) light-resistant bottlesNDC – 71511-701-16StorageStore at 25°C (77°F); excursions permitted to 15° - 30°C (59° - 86°F) [see USP Controlled Room Temperature] Avoid excessive heat above 40°C (104°F). Dispense in light-resistant containers. Shake gently before use.NAPROSYN Suspension: 125 mg/5 mL (contains 39 mg sodium): Available in 1 pint (473 mL) light-resistant bottlesNDC – 71511-701-16StorageStore at 25°C (77°F); excursions permitted to 15° - 30°C (59° - 86°F) [see USP Controlled Room Temperature] Avoid excessive heat above 40°C (104°F). Dispense in light-resistant containers. Shake gently before use.NAPROSYN Suspension: 125 mg/5 mL (contains 39 mg sodium): Available in 1 pint (473 mL) light-resistant bottlesNDC – 71511-701-16StorageStore at 25°C (77°F); excursions permitted to 15° - 30°C (59° - 86°F) [see USP Controlled Room Temperature] Avoid excessive heat above 40°C (104°F). Dispense in light-resistant containers. Shake gently before use.NAPROSYN Suspension: 125 mg/5 mL (contains 39 mg sodium): Available in 1 pint (473 mL) light-resistant bottlesNDC – 71511-701-16StorageStore at 25°C (77°F); excursions permitted to 15° - 30°C (59° - 86°F) [see USP Controlled Room Temperature] Avoid excessive heat above 40°C (104°F). Dispense in light-resistant containers. Shake gently before use.
Clinical Information
Chemical Structure
No Image foundClinical Pharmacology
Naproxen has analgesic, anti-inflammatory, and antipyretic properties.
The mechanism of action of naproxen, like that of other NSAIDs, is not completely understood but involves inhibition of cyclooxygenase (COX-1 and COX-2).
Naproxen is a potent inhibitor of prostaglandin synthesis in vitro. Naproxen concentrations reached during therapy have produced in vivo effects. Prostaglandins sensitize afferent nerves and potentiate the action of bradykinin in inducing pain in animal models. Prostaglandins are mediators of inflammation. Because naproxen is an inhibitor of prostaglandin synthesis, its mode of action may be due to a decrease of prostaglandins in peripheral tissues.
Non-Clinical Toxicology
NAPROSYN Suspension is contraindicated in the following patients:Oxycodone is metabolized in part to oxymorphone via the cytochrome p450 isoenzyme CYP2D6. While this pathway may be blocked by a variety of drugs (e.g., certain cardiovascular drugs and antidepressants), such blockade has not yet been shown to be of clinical significance with this agent. However, clinicians should be aware of this possible interaction.
Clinical trials of several COX-2 selective and nonselective NSAIDs of up to three years duration have shown an increased risk of serious cardiovascular (CV) thrombotic events, including myocardial infarction (MI) and stroke, which can be fatal. Based on available data, it is unclear that the risk for CV thrombotic events is similar for all NSAIDs. The relative increase in serious CV thrombotic events over baseline conferred by NSAID use appears to be similar in those with and without known CV disease or risk factors for CV disease. However, patients with known CV disease or risk factors had a higher absolute incidence of excess serious CV thrombotic events, due to their increased baseline rate. Some observational studies found that this increased risk of serious CV thrombotic events began as early as the first weeks of treatment. The increase in CV thrombotic risk has been observed most consistently at higher doses.
To minimize the potential risk for an adverse CV event in NSAID-treated patients, use the lowest effective dose for the shortest duration possible. Physicians and patients should remain alert for the development of such events, throughout the entire treatment course, even in the absence of previous CV symptoms. Patients should be informed about the symptoms of serious CV events and the steps to take if they occur.
There is no consistent evidence that concurrent use of aspirin mitigates the increased risk of serious CV thrombotic events associated with NSAID use. The concurrent use of aspirin and an NSAID, such as naproxen, increases the risk of serious gastrointestinal (GI) events [ ].
Status Post Coronary Artery Bypass Graft (CABG) Surgery
Two large, controlled clinical trials of a COX-2 selective NSAID for the treatment of pain in the first 10–14 days following CABG surgery found an increased incidence of myocardial infarction and stroke. NSAIDs are contraindicated in the setting of CABG [ ].
Post-MI Patients
Observational studies conducted in the Danish National Registry have demonstrated that patients treated with NSAIDs in the post-MI period were at increased risk of reinfarction, CV-related death, and all-cause mortality beginning in the first week of treatment. In this same cohort, the incidence of death in the first year post-MI was 20 per 100 person years in NSAID-treated patients compared to 12 per 100 person years in non-NSAID exposed patients. Although the absolute rate of death declined somewhat after the first year post-MI, the increased relative risk of death in NSAID users persisted over at least the next four years of follow-up.
Avoid the use of NAPROSYN Suspension in patients with a recent MI unless the benefits are expected to outweigh the risk of recurrent CV thrombotic events. If NAPROSYN Suspension is used in patients with a recent MI, monitor patients for signs of cardiac ischemia.
The following adverse reactions are discussed in greater detail in other sections of the labeling:
Reference
This information is obtained from the National Institute of Health's Standard Packaging Label drug database.
"https://dailymed.nlm.nih.gov/dailymed/"
While we update our database periodically, we cannot guarantee it is always updated to the latest version.
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