Diflunisal 500 mg Tablet, 100-count
🆔 Identity & classification
Where does this data come from?
🏷️ RxNorm drug class
This medicine belongs to the Nonsteroidal Anti-inflammatory Drug class.
Where does this data come from?
🏭 Manufacturer & labeler
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🩺 Clinical
Diflunisal is used to relieve pain, tenderness, swelling and stiffness caused by osteoarthritis (arthritis caused by a breakdown of the lining of the joints) and rheumatoid arthritis (arthritis caused by swelling of the lining of the joints). Diflunisal is also used to relieve mild to moderate pain from other causes. Diflunisal is in a class of medications called NSAIDs. It works by stopping the body's production of a substance that causes pain, fever, and inflammation.
Read the full MedlinePlus article ↗- Diflunisal is an anti-inflammatory pain reliever — an NSAID — used to treat mild to moderate pain and to help manage the symptoms of osteoarthritis and rheumatoid arthritis. It can...
- Swallow the tablets whole — don't crush or chew them. For pain, you'll usually take a higher first dose to get things working, then a lower dose every 8 to 12 hours after that. For...
- The most common ones are stomach-related — nausea, stomach pain, diarrhea, and sometimes constipation. You might also notice headache, dizziness, or ringing in your ears. Most of t...
- What side effects should I watch out for?
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Diflunisal — tap one for details:
Diflunisal may be associated with lower levels of 1 nutrient — worth a chat with your pharmacist, not a cause for alarm.
Where does this data come from?
Ask a licensed pharmacist directly — free, answered by our team.
💊 What it looks like
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII OP1R32D61U
Microcrystalline cellulose is a purified form of cellulose, a natural fiber from plant sources. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and give the medicine its shape and size.
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UNII M28OL1HH48
Croscarmellose sodium is a plant-based substance derived from cellulose. It acts as a disintegrant, helping tablets and capsules break down quickly in the digestive system so the medicine can be absorbed.
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UNII L06K8R7DQK
A synthetic blue dye approved by the FDA for use in medications and foods. It serves as a colorant to make pills and liquids visually distinct and easier to identify.
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UNII H77VEI93A8
A synthetic yellow dye used to color medications. It helps identify the drug and make it visually distinctive, with no effect on how the medicine works.
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UNII 3NXW29V3WO
Hypromellose is a plant-based thickener made from cellulose. It's used in medicines as a binder to hold ingredients together, a coating for tablets, and a thickener for liquids.
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UNII B697894SGQ
Polyethylene glycol 400 is a clear, thick liquid made from petroleum-derived polymers. It acts as a solvent and humectant in medicines, helping dissolve active ingredients and retain moisture in the formulation.
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UNII ETJ7Z6XBU4
Silicon dioxide is a naturally occurring mineral used as a glidant and anti-caking agent. It helps powder ingredients flow smoothly and prevents clumping during manufacturing and storage.
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UNII 7CV7WJK4UI
Sodium stearyl fumarate is a synthetic compound made from stearyl alcohol and fumaric acid. It acts as a lubricant and glidant in tablets and capsules, helping ingredients flow smoothly during manufacturing and preventing sticking.
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UNII O8232NY3SJ
A plant-based carbohydrate derived from corn kernels. It acts as a filler to add bulk, a binder to hold ingredients together, and a disintegrant to help the tablet break apart in your stomach for absorption.
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UNII 15FIX9V2JP
Titanium dioxide is a bright white mineral powder commonly used as a colorant and opacifying agent. It makes pills and tablets white or lighter in color and helps make coatings non-transparent.
10 inactive ingredients listed in the exact product block matched to this NDC.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per each | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data. | |
| Medicare drug plans payPart D · Q2 2026 | $1.06 | $105.86 / 100 tablets |
Where does this data come from?
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Diflunisal 500 mg 00093-9222-01 | Teva | 100 tablets | $1.043 | AB | Availability likely | — |
| diflunisal 500 mg 14539-0673-01 | Heritage | 100 tablets | $1.043 | — | Availability likely | — |
| Diflunisal 500 mg 62135-0456-60 | Chartwell | 60 tablets | $1.043 | — | Availability likely | — |
| Diflunisal 500 mgthis 68382-0530-30 | Zydus | 100 tablets | — | AB | FDA listed | — |
| Diflunisal 500 mg 70771-1083-00 | Zydus | 1000 tablets | — | AB | FDA listed | — |
Where does this data come from?
⏳ Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
Where does this data come from?
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 68382-0530-01 | 100 TABLET in 1 BOTTLE (68382-530-01) | 2017-09-14 | Active |
| 68382-0530-05 | 500 TABLET in 1 BOTTLE (68382-530-05) | 2017-09-14 | Active |
| 68382-0530-06 | 30 TABLET in 1 BOTTLE (68382-530-06) | 2017-09-14 | Active |
| 68382-0530-10 | 1000 TABLET in 1 BOTTLE (68382-530-10) | 2017-09-14 | Active |
| 68382-0530-14 | 60 TABLET in 1 BOTTLE (68382-530-14) | 2017-09-14 | Active |
| 68382-0530-16 | 90 TABLET in 1 BOTTLE (68382-530-16) | 2017-09-14 | Active |
| 68382-0530-30 You're viewing this | 10 BLISTER PACK in 1 CARTON (68382-530-30) / 10 TABLET in 1 BLISTER PACK | 2017-09-14 | Active |
Pack size FAQ
What quantity is in NDC 68382-0530-30?
What is the difference between NDC 68382-0530-30 and NDC 68382-0530-06?
What NDC number is used to bill for this package of Diflunisal 500 mg Tablet?
🧭 About this NDC listing & data coverage
What data is (and isn’t) available for this NDC — tap to expand
| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | ✓ Available |
| Inactive ingredients (structured) | ✓ Available |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | ✓ Available |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold. |
Questions about this listing
Why is there no price listed?
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📄 Full prescribing information FDA SPL
🚨 Boxed Warning ▾
Cardiovascular Risk • 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 ). • Diflunisal tablets are contraindicated in the setting of coronary artery bypass graft (CABG) surgery (see CONTRAINDICATIONS and WARNINGS ). Gastrointestinal Risk • NSAIDs cause an increased risk of serious gastrointestinal 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 are at greater risk for serious gastrointestinal events (see WARNINGS ).
🎯 Indications and Usage ▾
INDICATIONS AND USAGE Carefully consider the potential benefits and risks of diflunisal tablets and other treatment options before deciding to use diflunisal tablets. Use the lowest effective dose for the shortest duration consistent with individual patient treatment goals (see WARNINGS ). Diflunisal tablets are indicated for acute or long-term use for symptomatic treatment of the following: 1.
Mild to moderate pain 2. Osteoarthritis 3. Rheumatoid arthritis
⏱️ Dosage and Administration ▾
DOSAGE AND ADMINISTRATION Carefully consider the potential benefits and risks of diflunisal tablets and other treatment options before deciding to use diflunisal tablets. 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 diflunisal tablets, the dose and frequency should be adjusted to suit an individual patient's needs.
Concentration-dependent pharmacokinetics prevail when diflunisal is administered; a doubling of dosage produces a greater than doubling of drug accumulation. The effect becomes more apparent with repetitive doses. For mild to moderate pain, an initial dose of 1000 mg followed by 500 mg every 12 hours is recommended for most patients.
Following the initial dose, some patients may require 500 mg every 8 hours. A lower dosage may be appropriate depending on such factors as pain severity, patient response, weight, or advanced age; for example, 500 mg initially, followed by 250 mg every 8 to 12 hours. For osteoarthritis and rheumatoid arthritis, the suggested dosage range is 500 mg to 1000 mg daily in two divided doses.
The dosage of diflunisal may be increased or decreased according to patient response. Maintenance doses higher than 1500 mg a day are not recommended. Tablets should be swallowed whole, not crushed or chewed.
⛔ Contraindications ▾
CONTRAINDICATIONS Diflunisal tablets are contraindicated in patients with known hypersensitivity to diflunisal or the excipients (see DESCRIPTION ). Diflunisal tablets 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/analphylactoid reactions to NSAIDs have been reported in such patients (see WARNINGS, Anaphylactic/Anaphylactoid Reactions and PRECAUTIONS, Preexisting Asthma ).
Diflunisal tablets are contraindicated in the setting of coronary artery bypass graft (CABG) surgery (see WARNINGS ).
⚠️ Warnings ▾
WARNINGS Cardiovascular Effects Cardiovascular Thrombotic Events 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 diflunisal, increases the risk of serious gastrointestinal (GI) events (see WARNINGS ) . 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 (see CONTRAINDICATIONS ) . 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 diflunisal tablets in patients with a recent MI unless the benefits are expected to outweigh the risk of recurrent CV thrombotic events. If diflunisal tablets is used in patients with a recent MI, monitor patients for signs of cardiac ischemia.
Hypertension NSAIDs, including diflunisal tablets, can lead to onset of new hypertension or worsening of preexisting hypertension, either of which may contribute to the increased incidence of CV events. Patients taking thiazides or loop diuretics may have impaired response to these therapies when taking NSAIDs. NSAIDs, including diflunisal tablets, should be used with caution in patients with hypertension.
Blood pressure (BP) should be monitored closely during the initiation of NSAID treatment and throughout the course of therapy. Heart Failure and Edema The Coxib and traditional NSAID Trialists' Collaboration meta-analysis of randomized controlled trials demonstrated an approximately two-fold increase in hospitalizations for heart failure in COX-2 selective-treated patients and nonselective NSAID-treated patients compared to placebo-treated patients. In a Danish National Registry study of patients with heart failure, NSAID use increased the risk of MI, hospitalization for heart failure, and death.
Additionally, flui…
🤒 Adverse Reactions ▾
ADVERSE REACTIONS The adverse reactions observed in controlled clinical trials encompass observations in 2,427 patients. Listed below are the adverse reactions reported in the 1,314 of these patients who received treatment in studies of two weeks or longer. Five hundred thirteen patients were treated for at least 24 weeks, 255 patients were treated for at least 48 weeks, and 46 patients were treated for 96 weeks.
In general, the adverse reactions listed below were 2 to 14 times less frequent in the 1,113 patients who received short-term treatment for mild to moderate pain. Incidence Greater Than 1% Gastrointestinal The most frequent types of adverse reactions occurring with diflunisal are gastrointestinal: these include nausea*, vomiting, dyspepsia*, gastrointestinal pain*, diarrhea*, constipation, and flatulence. Psychiatric Somnolence, insomnia.
Central Nervous System Dizziness. Special Senses Tinnitus. Dermatologic Rash*.
Miscellaneous Headache*, fatigue/tiredness. * Incidence between 3% and 9%. Those reactions occurring in 1% to 3% are not marked with an asterisk. Incidence Less Than 1 in 100 The following adverse reactions, occurring less frequently than 1 in 100, were reported in clinical trials or since the drug was marketed.
The probability exists of a causal relationship between diflunisal and these adverse reactions. Dermatologic Erythema multiforme, exfoliative dermatitis, Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), fixed drug reaction (FDE), urticaria, pruritus, sweating, dry mucous membranes, stomatitis, and photosensitivity. Gastrointestinal Peptic ulcer, gastrointestinal bleeding, anorexia, eructation, gastrointestinal perforation, gastritis.
Liver function abnormalities; jaundice, sometimes with fever; cholestasis; hepatitis. Hematologic Thrombocytopenia; agranulocytosis; hemolytic anemia. Genitourinary Dysuria; renal impairment, including renal failure; interstitial nephritis; hematuria; proteinuria.
Psychiatric Nervousness, depression, hallucinations, confusion, disorientation. Central Nervous System Vertigo; light-headedness; paresthesias. Special Senses Transient visual disturbances including blurred vision.
Hypersensitivity Reactions Acute anaphylactic reaction with bronchospasm; angioedema; flushing. Hypersensitivity vasculitis. Hypersensitivity syndrome (see PRECAUTIONS ).
Miscellaneous Asthenia, edema. Causal Relationship Unknown Other reactions have been reported in clinical trials or since the drug was marketed, but occurred under circumstances where a causal relationship could not be established. However, in these rarely reported events, that possibility cannot be excluded.
Therefore, these observations are listed to serve as alerting information to physicians. Respiratory Dyspnea. Cardiovascular Palpitation, syncope.
Musculoskeletal Muscle cramps. Genitourinary Nephrotic syndrome. Special Senses Hearing loss.
Miscellaneous Chest pain. A rare occurrence of fulminant necrotizing fasciitis, particularly in association with Group A β -hemolytic streptococcus, has been described in persons treated with non-steroidal anti-inflammatory agents, including diflunisal, sometimes with fatal outcome (see also PRECAUTIONS, General ). Potential Adverse Effects In addition, a variety of adverse effects not observed with diflunisal in clinical trials or in marketing experience, but reported with other non-steroidal analgesic/anti-inflammatory agents should be considered potential adverse effects of diflunisal.
🤰 Pregnancy ▾
Fetal Toxicity Premature Closure of Fetal Ductus Arteriosus: Avoid use of NSAIDs, including diflunisal tablets, in pregnant women at about 30 weeks gestation and later. NSAIDs including diflunisal tablets, increase the risk of premature closure of the fetal ductus arteriosus at approximately this gestational age. Oligohydramnios/Neonatal Renal Impairment: Use of NSAIDs, including diflunisal tablets, at about 20 weeks gestation or later in pregnancy may cause fetal renal dysfunction leading to oligohydramnios and, in some cases, neonatal renal impairment.
These adverse outcomes are seen, on average, after days to weeks of treatment, although oligohydramnios has been infrequently reported as soon as 48 hours after NSAID initiation. Oligohydramnios is often, but not always, reversible with treatment discontinuation. Complications of prolonged oligohydramnios may, for example, include limb contractures and delayed lung maturation.
In some postmarketing cases of impaired neonatal renal function, invasive procedures such as exchange transfusion or dialysis were required. If NSAID treatment is necessary between about 20 weeks and 30 weeks gestation, limit diflunisal tablets use to the lowest effective dose and shortest duration possible. Consider ultrasound monitoring of amniotic fluid if diflunisal tablets treatment extends beyond 48 hours.
Discontinue diflunisal tablets if oligohydramnios occurs and follow up according to clinical practice [ see PRECAUTIONS; Pregnancy ] .
🆘 Overdosage ▾
OVERDOSAGE Cases of overdosage have occurred and deaths have been reported. Most patients recovered without evidence of permanent sequelae. The most common signs and symptoms observed with overdosage were drowsiness, vomiting, nausea, diarrhea, hyperventilation, tachycardia, sweating, tinnitus, disorientation, stupor, and coma.
Diminished urine output and cardiorespiratory arrest have also been reported. The lowest dosage of diflunisal at which a death has been reported was 15 grams without the presence of other drugs. In a mixed drug overdose, ingestion of 7.5 grams of diflunisal resulted in death.
In the event of overdosage, the stomach should be emptied by inducing vomiting or by gastric lavage, and the patient carefully observed and given symptomatic and supportive treatment. Because of the high degree of protein binding, hemodialysis may not be effective. The oral LD 50 of the drug is 500 mg/kg and 826 mg/kg in female mice and female rats, respectively.
🧬 Clinical Pharmacology ▾
CLINICAL PHARMACOLOGY Action Diflunisal is a non-steroidal drug with analgesic, anti-inflammatory and antipyretic properties. It is a peripherally-acting non-narcotic analgesic drug. Habituation, tolerance, and addiction have not been reported.
Diflunisal is a difluorophenyl derivative of salicylic acid. Chemically, diflunisal differs from aspirin (acetylsalicylic acid) in two respects. The first of these two is the presence of a difluorophenyl substituent at carbon 1.
The second difference is the removal of the O -acetyl group from the carbon 4 position. Diflunisal is not metabolized to salicylic acid, and the fluorine atoms are not displaced from the difluorophenyl ring structure. The precise mechanism of the analgesic and anti-inflammatory actions of diflunisal is not known.
Diflunisal is a prostaglandin synthetase inhibitor. In animals, prostaglandins sensitize afferent nerves and potentiate the action of bradykinin in inducing pain. Since prostaglandins are known to be among the mediators of pain and inflammation, the mode of action of diflunisal may be due to a decrease of prostaglandins in peripheral tissues.
Pharmacokinetics and Metabolism Diflunisal is rapidly and completely absorbed following oral administration with peak plasma concentrations occurring between 2 to 3 hours. The drug is excreted in the urine as two soluble glucuronide conjugates accounting for about 90% of the administered dose. Little or no diflunisal is excreted in the feces.
Diflunisal appears in human milk in concentrations of 2 to 7% of those in plasma. More than 99% of diflunisal in plasma is bound to proteins. As is the case with salicylic acid, concentration-dependent pharmacokinetics prevail when diflunisal is administered; a doubling of dosage produces a greater than doubling of drug accumulation.
The effect becomes more apparent with repetitive doses. Following single doses, peak plasma concentrations of 41 ± 11 mcg/mL (mean ± S.D.) were observed following 250 mg doses, 87 ± 17 mcg/mL were observed following 500 mg and 124 ± 11 mcg/mL following single 1000 mg doses. However, following administration of 250 mg b.i.d., a mean peak level of 56 ± 14 mcg/mL was observed on day 8, while the mean peak level after 500 mg b.i.d. for 11 days was 190 ± 33 mcg/mL.
In contrast to salicylic acid which has a plasma half-life of 2 1/2 hours, the plasma half-life of diflunisal is 3 to 4 times longer (8 to 12 hours), because of a difluorophenyl substituent at carbon 1. Because of its long half-life and nonlinear pharmacokinetics, several days are required for diflunisal plasma levels to reach steady state following multiple doses. For this reason, an initial loading dose is necessary to shorten the time to reach steady-state levels, and 2 to 3 days of observation are necessary for evaluating changes in treatment regimens if a loading dose is not used.
Studies in baboons to determine passage across the blood-brain barrier have shown that only small quantities of diflunisal, under normal or acidotic conditions are transported into the cerebrospinal fluid (CSF). The ratio of blood/CSF concentrations after intravenous doses of 50 mg/kg or oral doses of 100 mg/kg of diflunisal was 100:1. In contrast, oral doses of 500 mg/kg of aspirin resulted in a blood/CSF ratio of 5:1.
Mild to Moderate Pain Diflunisal is a peripherally-acting analgesic agent with a long duration of action. Diflunisal produces significant analgesia within 1 hour and maximum analgesia within 2 to 3 hours. Consistent with its long half-life, clinical effects of diflunisal mirror its pharmacokinetic behavior, which is the basis for recommending a loading dose when instituting therapy.
Patients treated with diflunisal, on the first dose, tend to have a slower onset of pain relief when compared with drugs achieving comparable peak effects. However, diflunisal produces longer lasting responses than the comparative agents. Comparative single dose clinical studies have established the analgesic effica…
📦 How Supplied / Storage and Handling ▾
HOW SUPPLIED Diflunisal Tablets USP, 500 mg are light blue to blue color, capsule shaped, biconvex, coated tablets, debossed with "530" on one side and plain on the other side and are supplied as follows: NDC 68382-530-06 in bottle of 30 tablets NDC 68382-530-14 in bottle of 60 tablets NDC 68382-530-16 in bottle of 90 tablets NDC 68382-530-01 in bottle of 100 tablets NDC 68382-530-05 in bottle of 500 tablets NDC 68382-530-10 in bottle of 1000 tablets NDC 68382-530-30 in unit-dose blister cartons of 100 (10 X 10) unit-dose tablets Storage Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature].
Dispense in a tight container (USP). Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Manufactured by: Zydus Lifesciences Limited., Baddi-173205, India Distributed by: Zydus Pharmaceuticals USA Inc. Pennington, NJ 08534 Rev.: 07/24
📋 Description ▾
DESCRIPTION Diflunisal is 2',4'-difluoro-4-hydroxy-3-biphenylcarboxylic acid. Its structural formula is: C 13 H 8 F 2 O 3 M.W. 250.20 Diflunisal is a stable, white to off-white, crystalline compound with a melting point of 211° to 213°C.
It is practically insoluble in hexane and water. It is soluble in most organic solvents including acetone and ethyl acetate and it is slightly soluble in chloroform, carbon tetrachloride and methylene chloride. Each diflunisal tablet intended for oral administration contains 500 mg of diflunisal.
In addition, each tablet contains the following inactive ingredients: colloidal silicon dioxide, croscarmellose sodium, hypromellose, microcrystalline cellulose, pregelatinised starch and sodium stearyl fumarate. Additionally, each diflunisal tablets contain opadry blue 03B505010 which contains FD&C blue #2, FD&C yellow #6, hypromellose, polyethylene glycol and titanium dioxide. Structure
💬 Medication Guide ▾
Medication Guide for Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) Rx only (See the end of this Medication Guide for a list of prescription NSAID medicines.) What is the most important information I should know about medicines called Non-Steroidal Anti-Inflammatory Drugs (NSAIDs)? Increased risk of a heart attack or stroke that can lead to death. The risk may happen early in treatment and may increase: with increasing doses of NSAIDs with longer use of NSAIDs Do not take NSAIDs right before or after a heart surgery called a "coronary artery bypass graft (CABG)." Avoid taking NSAIDs after a recent heart attack, unless your healthcare provider tells you to.
You may have an increased risk of another heart attack if you take NSAIDs after a recent heart attack. NSAID medicines can cause ulcers and bleeding in the stomach and intestines at any time during treatment. Ulcers and bleeding: can happen without warning symptoms may cause death The chance of a person getting an ulcer or bleeding increases with: taking medicines called "corticosteroids" and "anticoagulants" longer use smoking drinking alcohol older age having poor health NSAID medicines should only be used: exactly as prescribed at the lowest dose possible for your treatment for the shortest time needed What are Non-Steroidal Anti-Inflammatory Drugs (NSAIDs)?
NSAID medicines are used to treat pain and redness, swelling, and heat (inflammation) from medical conditions such as: different types of arthritis menstrual cramps and other types of short-term pain Who should not take a Non-Steroidal Anti-Inflammatory Drug (NSAID)? Do not take an NSAID medicine: if you had an asthma attack, hives, or other allergic reaction with aspirin or any other NSAID medicine right before or after heart bypass surgery Before taking NSAIDS, tell your healthcare provider about all of your medical conditions, including if you: have liver or kidney problems have high blood pressure have asthma are pregnant or plan to become pregnant.
Taking NSAIDs at about 20 weeks of pregnancy or later may harm your unborn baby. If you need to take NSAIDs for more than 2 days when you are between 20 and 30 weeks of pregnancy, your healthcare provider may need to monitor the amount of fluid in your womb around your baby. You should not take NSAIDs after about 30 weeks of pregnancy. are breastfeeding or plan to breast feed.
Tell your healthcare provider: about all of your medical conditions. about all of the medicines you take. NSAIDs and some other medicines can interact with each other and cause serious side effects. Keep a list of your medicines to show to your healthcare provider and pharmacist. if you are pregnant.
NSAID medicines should not be used by pregnant women late in their pregnancy. if you are breastfeeding. Talk to your doctor. if you have high blood pressure What are the possible side effects of Non-Steroidal Anti-Inflammatory Drugs (NSAIDs)? Serious Side effects include : Other side effects include : • heart attack • stomach pain • stroke • constipation • high blood pressure • diarrhea • heart failure from body swelling (fluid retention) • gas • kidney problems including kidney failure • heartburn • bleeding and ulcers in the stomach and intestine • nausea • low red blood cells (anemia) • vomiting • life-threatening skin reactions • dizziness • life-threatening allergic reactions • liver problems including liver failure • asthma attacks in people who have asthma Get emergency help right away if you have any of the following symptoms: shortness of breath or trouble breathing chest pain weakness in one part or side of your body slurred speech swelling of the face or throat Stop your NSAID medicine and call your healthcare provider right away if you have any of the following symptoms: nausea more tired or weaker than usual itching your skin or eyes look yellow stomach pain flu-like symptoms vomit blood there is blood in your bowel movement or it is black and sticky like tar unusual weight gain skin ras…