Voltaren by is a Prescription medication manufactured, distributed, or labeled by Bryant Ranch Prepack. Drug facts, warnings, and ingredients follow.
Most common adverse reactions (incidence >2% of patients treated with VOLTAREN® GEL and greater than placebo) are application site reactions, including dermatitis. (6.1)
To report SUSPECTED ADVERSE REACTIONS, contact Sandoz Inc. at 1-800-525-8747 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch
Pregnancy: Use of NSAIDs during the third trimester of pregnancy increases the risk of premature closure of the fetal ductus arteriosus. Avoid use of NSAIDs in pregnant women starting at 30 weeks gestation (5.10, 8.1)
Infertility: NSAIDs are associated with reversible infertility. Consider withdrawal of VOLTAREN® GEL in women who have difficulties conceiving. (8.3)
See 17 for PATIENT COUNSELING INFORMATION and Medication Guide.
Revised: 5/2017
Cardiovascular Thrombotic Events
Gastrointestinal Bleeding, Ulceration, and Perforation
Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals [see Warnings and Precautions (5)].
[See the Patient Instructions for Use]
The dosing card can be found attached to the inside of the carton.
The proper amount of VOLTAREN® GEL should be measured using the dosing card supplied in the drug product carton. The dosing card is made of clear polypropylene. The dosing card should be used for each application of drug product. The gel should be applied within the rectangular area of the dosing card up to the 2 gram or 4 gram line (2 g for each elbow, wrist, or hand, and 4 g for each knee, ankle, or foot). The 2 g line is 2.25 inches long. The 4 g line is 4.5 inches long. The dosing card containing VOLTAREN® GEL can be used to apply the gel. The hands should then be used to gently rub the gel into the skin. After using the dosing card, hold with fingertips, rinse, and dry. If treatment site is the hands, patients should wait at least one (1) hour to wash their hands.
Apply the gel (4 g) to the affected foot, ankle, or knee 4 times daily. VOLTAREN® GEL should be gently massaged into the skin ensuring application to the entire affected foot, or knee or ankle. The entire foot includes the sole, top of the foot and the toes. Do not apply more than 16 g daily to any single joint of the lower extremities.
Apply the gel (2 g) to the affected hand, wrist, or elbow 4 times daily. VOLTAREN® GEL should be gently massaged into the skin ensuring application to the entire affected hand, wrist, or elbow. The entire hand includes the palm, back of the hands, and the fingers. Do not apply more than 8 g daily to any single joint of the upper extremities.
Total dose should not exceed 32 g per day, over all affected joints.
VOLTAREN® GEL is contraindicated in the following patients:
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 diclofenac, increases the risk of serious gastrointestinal (GI) events [see Warnings and Precautions (5.2)].
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 (4)].
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 VOLTAREN® GEL in patients with a recent MI unless the benefits are expected to outweigh the risk of recurrent CV thrombotic events. If VOLTAREN® GEL is used in patients with a recent MI, monitor patients for signs of cardiac ischemia.
NSAIDs, including diclofenac, cause serious gastrointestinal (GI) adverse events including inflammation, bleeding, ulceration, and perforation of the esophagus, stomach, small intestine, or large intestine, which can be fatal. These serious adverse events can occur at any time, with or without warning symptoms, in patients treated with NSAIDs. Only one in five patients who develop a serious upper GI adverse event on NSAID therapy is symptomatic. Upper GI ulcers, gross bleeding, or perforation caused by NSAIDs occurred in approximately 1% of patients treated for 3-6 months, and in about 2%-4% of patients treated for one year. However, even short-term NSAID therapy is not without risk.
Risk Factors for GI Bleeding, Ulceration, and Perforation
Patients with a prior history of peptic ulcer disease and/or GI bleeding who used NSAIDs had a greater than 10-fold increased risk for developing a GI bleed compared to patients without these risk factors. Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. Most postmarketing reports of fatal GI events occurred in elderly or debilitated patients. Additionally, patients with advanced liver disease and/or coagulopathy are at increased risk for GI bleeding.
Strategies to Minimize the GI Risks in NSAID-treated patients:
In clinical trials, of oral diclofenac-containing products, meaningful elevations (i.e., more than 3 times the ULN) of AST (SGOT) were observed in about 2% of approximately 5,700 patients at some time during diclofenac treatment (ALT was not measured in all studies).
In a large, open-label, controlled trial of 3,700 patients treated with oral diclofenac sodium for 2-6 months, patients were monitored first at 8 weeks and 1,200 patients were monitored again at 24 weeks. Meaningful elevations of ALT and/or AST occurred in about 4% of 3,700 patients and included marked elevations (greater than 8 times the ULN) in about 1% of the 3,700 patients. In that open-label study, a higher incidence of borderline (less than 3 times the ULN), moderate (3-8 times the ULN), and marked (greater than 8 times the ULN) elevations of ALT or AST was observed in patients receiving diclofenac when compared to other NSAIDs. Elevations in transaminases were seen more frequently in patients with osteoarthritis than in those with rheumatoid arthritis.
Almost all meaningful elevations in transaminases were detected before patients became symptomatic. Abnormal tests occurred during the first 2 months of therapy with diclofenac in 42 of the 51 patients in all trials who developed marked transaminase elevations.
In postmarketing reports, cases of drug-induced hepatotoxicity have been reported in the first month, and in some cases, the first 2 months of therapy, but can occur at any time during treatment with diclofenac. Postmarketing surveillance has reported cases of severe hepatic reactions, including liver necrosis, jaundice, fulminant hepatitis with and without jaundice, and liver failure. Some of these reported cases resulted in fatalities or liver transplantation.
In a European retrospective population-based, case-controlled study, 10 cases of diclofenac associated drug-induced liver injury with current use compared with non-use of diclofenac were associated with a statistically significant 4-fold adjusted odds ratio of liver injury. In this particular study, based on an overall number of 10 cases of liver injury associated with diclofenac, the adjusted odds ratio increased further with female gender, doses of 150 mg or more, and duration of use for more than 90 days.
Physicians should measure transaminases at baseline and periodically in patients receiving long-term therapy with diclofenac, because severe hepatotoxicity may develop without a prodrome of distinguishing symptoms. The optimum times for making the first and subsequent transaminase measurements are not known. Based on clinical trial data and postmarketing experiences, transaminases should be monitored within 4 to 8 weeks after initiating treatment with diclofenac. However, severe hepatic reactions can occur at any time during treatment with diclofenac.
If abnormal liver tests persist or worsen, if clinical signs and/or symptoms consistent with liver disease develop, or if systemic manifestations occur (e.g., eosinophilia, rash, abdominal pain, diarrhea, dark urine, etc.),VOLTAREN® GEL should be discontinued immediately.
Inform patients of the warning signs and symptoms of hepatotoxicity (e.g., nausea, fatigue, lethargy, diarrhea, pruritus, jaundice, right upper quadrant tenderness, and "flu-like" symptoms). If clinical signs and symptoms consistent with liver disease develop, or if systemic manifestations occur (e.g., eosinophilia, rash, etc.), discontinue VOLTAREN® GEL immediately, and perform a clinical evaluation of the patient.
To minimize the potential risk for an adverse liver related event in patients treated with VOLTAREN® GEL, use the lowest effective dose for the shortest duration possible. Exercise caution when prescribing VOLTAREN® GEL with concomitant drugs that are known to be potentially hepatotoxic (e.g., acetaminophen, antibiotics, anti-epileptics).
NSAIDs, including VOLTAREN® GEL, can lead to new onset of hypertension or worsening of preexisting hypertension, either of which may contribute to the increased incidence of CV events. Patients taking angiotensin converting enzyme (ACE) inhibitors, thiazide diuretics, or loop diuretics may have impaired response to these therapies when taking NSAIDs [see Drug Interactions (7)].
Monitor blood pressure (BP) during the initiation of NSAID treatment and throughout the course of therapy.
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, fluid retention and edema have been observed in some patients treated with NSAIDs. Use of diclofenac may blunt the CV effects of several therapeutic agents used to treat these medical conditions (e.g., diuretics, ACE inhibitors, or angiotensin receptor blockers [ARBs]) [see Drug interactions (7)].
Avoid the use of VOLTAREN® GEL in patients with severe heart failure unless the benefits are expected to outweigh the risk of worsening heart failure. If VOLTAREN® GEL is used in patients with severe heart failure, monitor patients for signs of worsening heart failure.
Renal Toxicity
Long-term administration of NSAIDs has resulted in renal papillary necrosis and other renal injury.
Renal toxicity has also been seen in patients in whom renal prostaglandins have a compensatory role in the maintenance of renal perfusion. In these patients, administration of an NSAID may cause a dose-dependent reduction in prostaglandin formation and, secondarily, in renal blood flow, which may precipitate overt renal decompensation. Patients at greatest risk of this reaction are those with impaired renal function, dehydration, hypovolemia, heart failure, liver dysfunction, those taking diuretics and ACE-inhibitors or ARBs, and the elderly. Discontinuation of NSAID therapy is usually followed by recovery to the pretreatment state.
No information is available from controlled clinical studies regarding the use of VOLTAREN® GEL in patients with advanced renal disease. The renal effects of VOLTAREN® GEL may hasten the progression of renal dysfunction in patients with preexisting renal disease.
Correct volume status in dehydrated or hypovolemic patients prior to initiating VOLTAREN® GEL. Monitor renal function in patients with renal or hepatic impairment, heart failure, dehydration, or hypovolemia during use of VOLTAREN® GEL [see Drug Interactions (7)]. Avoid the use of VOLTAREN® GEL in patients with advanced renal disease unless the benefits are expected to outweigh the risk of worsening renal function. If VOLTAREN® GEL is used in patients with advanced renal disease, monitor patients for signs of worsening renal function.
Hyperkalemia
Increases in serum potassium concentration, including hyperkalemia, have been reported with use of NSAIDs, even in some patients without renal impairment. In patients with normal renal function, these effects have been attributed to a hyporeninemic-hypoaldosteronism state.
Diclofenac has been associated with anaphylactic reactions in patients with and without known hypersensitivity to diclofenac and in patients with aspirin-sensitive asthma [see Contraindications (4) and Warnings and Precautions (5.8)].
Seek emergency help if an anaphylactic reaction occurs.
A subpopulation of patients with asthma may have aspirin-sensitive asthma which may include chronic rhinosinusitis complicated by nasal polyps; severe, potentially fatal bronchospasm; and/or intolerance to aspirin and other NSAIDs. Because cross-reactivity between aspirin and other NSAIDs has been reported in such aspirin-sensitive patients, VOLTAREN® GEL is contraindicated in patients with this form of aspirin sensitivity [see Contraindications (4)]. When VOLTAREN® GEL is used in patients with preexisting asthma (without known aspirin sensitivity), monitor patients for changes in the signs and symptoms of asthma.
NSAIDs, including diclofenac, can cause serious skin adverse reactions such as exfoliative dermatitis, Stevens-Johnson Syndrome (SJS), and toxic epidermal necrolysis (TEN), which can be fatal. These serious events may occur without warning. Inform patients about the signs and symptoms of serious skin reactions, and to discontinue the use of VOLTAREN® GEL at the first appearance of skin rash or any other sign of hypersensitivity. VOLTAREN® GEL is contraindicated in patients with previous serious skin reactions to NSAIDs [see Contraindications (4)].
Diclofenac may cause premature closure of the fetal ductus arteriosus. Avoid use of NSAIDs, including VOLTAREN® GEL, in pregnant women starting at 30 weeks of gestation (third trimester) [see Use in Specific Populations (8.1)].
Anemia has occurred in NSAID-treated patients. This may be due to occult or gross blood loss, fluid retention, or an incompletely described effect on erythropoiesis. If a patient treated with VOLTAREN® GEL has any signs or symptoms of anemia, monitor hemoglobin or hematocrit.
NSAIDs, including VOLTAREN® GEL, may increase the risk of bleeding events. Co-morbid conditions such as coagulation disorders, concomitant use of warfarin, other anticoagulants, antiplatelet agents (e.g., aspirin), serotonin reuptake inhibitors (SSRIs) and serotonin norepinephrine reuptake inhibitors (SNRIs) may increase this risk. Monitor these patients for signs of bleeding [see Drug Interactions (7)].
The pharmacological activity of VOLTAREN® GEL in reducing inflammation, and possibly fever, may diminish the utility of diagnostic signs in detecting infections.
Because serious GI bleeding, hepatotoxicity, and renal injury can occur without warning symptoms or signs, consider monitoring patients on long-term NSAID treatment with a CBC and a chemistry profile periodically [see Warnings and Precautions (5.2, 5.3, 5.6)].
Patients should minimize or avoid exposure to natural or artificial sunlight on treated areas because studies in animals indicated topical diclofenac treatment resulted in an earlier onset of ultraviolet light induced skin tumors. The potential effects of VOLTAREN® GEL on skin response to ultraviolet damage in humans are not known.
The following adverse reactions are discussed in greater detail in other sections of the labeling:
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared with rates in the clinical trials of another drug and may not reflect the rates observed in practice.
During clinical development, 913 patients were exposed to VOLTAREN® GEL in randomized, double-blind, multicenter, vehicle-controlled, parallel-group studies in osteoarthritis of the superficial joints of the extremities. Of these, 513 patients received VOLTAREN® GEL for osteoarthritis of the knee and 400 were treated for osteoarthritis of the hand. Additionally, 583 patients were exposed to VOLTAREN® GEL in an uncontrolled, open-label, long-term safety trial in osteoarthritis of the knee. Of these, 355 patients were treated for osteoarthritis of 1 knee and 228 were treated for osteoarthritis of both knees. Duration of exposure ranged from 8 to 12 weeks for the placebo-controlled studies, and up to 12 months for the open-label safety trial.
Short-Term Placebo-Controlled Trials:
Adverse reactions observed in at least 1% of patients treated with VOLTAREN® GEL: Non-serious adverse reactions that were reported during the short-term placebo-controlled studies comparing VOLTAREN® GEL and placebo (vehicle gel) over study periods of 8 to 12 weeks (16 g per day), were application site reactions. These were the only adverse reactions that occurred in >1% of treated patients with a greater frequency in the VOLTAREN® GEL group (7%) than the placebo group (2%).
Table 1 lists the types of application site reactions reported. Application site dermatitis was the most frequent type of application site reaction and was reported by 4% of patients treated with VOLTAREN® GEL, compared to 1% of placebo patients.
Adverse Reaction† |
VOLTAREN® GEL
|
Placebo (vehicle)
|
N (%) |
N (%) |
|
Any application site reaction |
62 (7) |
19 (2) |
Application site dermatitis |
32 (4) |
6 (<1) |
Application site pruritus |
7 (<1) |
1 (<1) |
Application site erythema |
6 (<1) |
3 (<1) |
Application site paresthesia |
5 (<1) |
3 (<1) |
Application site dryness |
4 (<1) |
3 (<1) |
Application site vesicles |
3 (<1) |
0 |
Application site irritation |
2 (<1) |
0 |
Application site papules |
1 (<1) |
0 |
†Preferred Term according to MedDRA 9.1.
In the placebo-controlled trials, the discontinuation rate due to adverse reactions was 5% for patients treated with VOLTAREN® GEL, and 3% for patients in the placebo group. Application site reactions, including application site dermatitis, were the most frequent reason for treatment discontinuation.
Long-Term Open-Label Safety Trial:
In the open-label, long-term safety study, distribution of adverse reactions was similar to that in the placebo-controlled studies. In this study, where patients were treated for up to 1 year with VOLTAREN® GEL up to 32 g per day, application site dermatitis was observed in 11% of patients. Adverse reactions that led to the discontinuation of the study drug were experienced in 12% of patients. The most common adverse reaction that led to discontinuation of the study was application site dermatitis, which was experienced by 6% of patients.
See Table 2 for clinically significant drug interactions with diclofenac.
Table 2: Clinically Significant Drug Interactions with Diclofenac
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Pregnancy Category C prior to 30 weeks gestation; Category D starting 30 weeks gestation
Risk Summary
Use of NSAIDs, including VOLTAREN® GEL, during the third trimester of pregnancy increases the risk of premature closure of the fetal ductus arteriosus. Avoid use of NSAIDs, including VOLTAREN® GEL, in pregnant women starting at 30 weeks of gestation (third trimester).
There are no adequate and well-controlled studies of VOLTAREN® GEL in pregnant women. Human and animal studies indicate that diclofenac crosses the placenta. Data from observational studies regarding potential embryofetal risks of NSAID use in women in the first or second trimesters of pregnancy are inconclusive. In the general U.S. population, all clinically recognized pregnancies, regardless of drug exposure, have a background rate of 2-4% for major malformations, and 15-20% for pregnancy loss. In animal reproduction studies, no evidence of teratogenicity was observed in mice, rats, or rabbits given diclofenac during the period of organogenesis at doses up to approximately 5, 5, and 10 times, respectively, the maximum recommended topical dose of VOLTAREN® GEL, despite the presence of maternal and fetal toxicity at these doses [see Data]. Based on animal data, prostaglandins have been shown to have an important role in endometrial vascular permeability, blastocyst implantation, and decidualization. In animal studies, administration of prostaglandin synthesis inhibitors such as diclofenac, resulted in increased pre- and post-implantation loss.
Clinical Considerations
Labor or Delivery
There are no studies on the effects of VOLTAREN® GEL during labor or delivery. In animal studies, NSAIDS, including diclofenac, inhibit prostaglandin synthesis, cause delayed parturition, and increase the incidence of stillbirth.
Data
Animal data
Reproductive and developmental studies in animals demonstrated that diclofenac sodium administration during organogenesis did not produce teratogenicity despite the induction of maternal toxicity and fetal toxicity in mice at oral doses up to 20 mg/kg/day (approximately 5 times the maximum recommended human dose (MRHD) of VOLTAREN® GEL based on bioavailability and body surface area (BSA) comparison), and in rats and rabbits at oral doses up to 10 mg/kg/day (approximately 5 and 10 times the MRHD based on bioavailability and BSA comparison).
In a study in which pregnant rats were orally administered 2 or 4 mg/kg diclofenac (approximately 1 and 2 times the MRHD based on bioavailability and BSA comparison) from Gestation Day 15 through Lactation Day 21, significant maternal toxicity (peritonitis, mortality) was noted. These maternally toxic doses were associated with dystocia, prolonged gestation, reduced fetal weights and growth, and reduced fetal survival.
Risk Summary
Based on available data, diclofenac may be present in human milk. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for CATAFLAM and any potential adverse effects on the breastfed infant from the CATAFLAM or from the underlying maternal condition.
Data
One woman treated orally with a diclofenac salt, 150 mg/day, had a milk diclofenac level of 100 mcg/L, equivalent to an infant dose of about 0.03 mg/kg/day. Diclofenac was not detectable in breast milk in 12 women using diclofenac (after either 100 mg/day orally for 7 days or a single 50 mg intramuscular dose administered in the immediate postpartum period).
Infertility
Females
Based on the mechanism of action, the use of prostaglandin-mediated NSAIDs, including VOLTAREN® GEL, may delay or prevent rupture of ovarian follicles, which has been associated with reversible infertility in some women. Published animal studies have shown that administration of prostaglandin synthesis inhibitors has the potential to disrupt prostaglandin‑mediated follicular rupture required for ovulation. Small studies in women treated with NSAIDs have also shown a reversible delay in ovulation. Consider withdrawal of NSAIDs, including VOLTAREN® GEL, in women who have difficulties conceiving or who are undergoing investigation of infertility.
Elderly patients, compared to younger patients, are at greater risk for NSAID-associated serious cardiovascular, gastrointestinal, and/or renal adverse reactions. If the anticipated benefit for the elderly patient outweighs these potential risks, start dosing at the low end of the dosing range, and monitor patients for adverse effects [see Warnings and Precautions (5.1, 5.2, 5.3, 5.6, 5.13)].
Of the total number of subjects treated with VOLTAREN® GEL in clinical studies, 498 were 65 years of age and over. No overall differences in effectiveness or safety were observed between these subjects and younger subjects, but greater sensitivity to the effect of NSAIDs in some older individuals cannot be ruled out.
Diclofenac, as with any NSAID, is known to be substantially excreted by the kidney, and the risk of toxic reactions to VOLTAREN® GEL may be greater in patients with impaired renal function. Because elderly patients are more likely to have decreased renal function, care should be taken when using VOLTAREN® GEL in the elderly, and it may be useful to monitor renal function.
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 [see Warnings and Precautions (5.1, 5.2, 5.4, 5.6)].
Manage patients with symptomatic and supportive care following an NSAID overdosage. There are no specific antidotes. 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).
VOLTAREN® GEL (diclofenac sodium topical gel) is a nonsteroidal anti-inflammatory drug (NSAID) for topical use only. The chemical name is 2-[(2,6-dichlorophenyl)amino]benzene acetic acid, monosodium salt. The molecular weight is 318.14. Its molecular formula is C14H10Cl2NNaO2, and it has the following chemical structure:
It contains the active ingredient, diclofenac sodium, in an opaque, white gel base. Diclofenac sodium is a white to slightly yellow crystalline powder. Diclofenac sodium is a benzeneacetic acid derivative.
The inactive ingredients in VOLTAREN® GEL include: carbomer homopolymer Type C, cocoyl caprylocaprate, fragrance, isopropyl alcohol, mineral oil, polyoxyl 20 cetostearyl ether, propylene glycol, purified water, and strong ammonia solution.
Diclofenac has analgesic, anti-inflammatory, and antipyretic properties.
The mechanism of action of VOLTAREN® GEL, like that of other NSAIDs, is not completely understood but involves inhibition of cyclooxygenase (COX-1 and COX-2).
Diclofenac is a potent inhibitor of prostaglandin synthesis in vitro. Diclofenac 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 diclofenac is an inhibitor of prostaglandin synthesis, its mode of action may be due to a decrease of prostaglandins in peripheral tissues.
The pharmacokinetics of VOLTAREN® GEL were assessed in healthy volunteers following repeated applications during 7 days of VOLTAREN® GEL to 1 knee (4 x 4 g per day) or to 2 knees and 2 hands (4 x 12 g per day) versus the recommended oral dose of diclofenac sodium for the treatment of osteoarthritis (3 x 50 mg per day). A summary of the pharmacokinetic parameters is presented in Table 2.
Treatment |
Cmax (ng/mL) |
Tmax (hr) |
AUC0-24 (ng●h/mL) |
VOLTAREN® GEL |
15 ± 7.3 |
14 (0-24) |
233 ± 128 |
VOLTAREN® GEL |
53.8 ± 32 |
10 (0-24) |
807 ± 478 |
Diclofenac sodium tablets, |
2270 ± 778 |
6.5 (1-14) |
3890 ± 1710 |
Cmax = maximum plasma concentration, tmax=time of Cmax. AUC0-24=area under the concentration time curve. SD=standard deviation. CI=confidence interval.
Systemic exposure (area under the concentration-time curve) and maximum plasma concentrations of diclofenac are significantly lower with VOLTAREN® GEL than with comparable oral treatment of diclofenac sodium.
Systemic exposure with recommended use of VOLTAREN® GEL (4 x 4 g per day applied to 1 knee) is on average 17 times lower than with oral treatment. (Basis: treatment with VOLTAREN® GEL of 1 knee, 4 times a day versus 50 mg, 3 times a day of oral diclofenac tablets.) The amount of diclofenac sodium that is systemically absorbed from VOLTAREN® GEL is on average 6% of the systemic exposure from an oral form of diclofenac sodium.
The average peak plasma concentration with recommended use of VOLTAREN® GEL (4 x 4 g per day applied to 1 knee) is 158 times lower than with the oral treatment.
The pharmacokinetics of VOLTAREN® GEL has been tested under conditions of moderate heat (application of a heat patch for 15 minutes prior to gel application) and of moderate exercise (first gel application followed by a 20-minute treadmill exercise). No clinically relevant differences of systemic absorption and of tolerability were found between applications of VOLTAREN® GEL (4 x 4 g per day on 1 knee) with and under the conditions tested. However, the pharmacokinetics of VOLTAREN® GEL were not tested under the condition of heat application following gel application. Therefore, concurrent use of VOLTAREN® GEL and heat is not recommended.
Drug Interaction Studies
Aspirin: When NSAIDs were administered with aspirin, the protein binding of NSAIDs were reduced, although the clearance of free NSAID was not altered. The clinical significance of this interaction is not known. See Table 2 for clinically significant drug interactions of NSAIDs with aspirin [see Drug Interactions (7)].
Carcinogenesis
Carcinogenicity studies in mice and rats administered diclofenac sodium as a dietary constituent for 2 years at doses up to 2 mg/kg/day (approximately 0.5 and 1 times, respectively, the maximum recommended human topical dose of VOLTAREN® GEL based on bioavailability and body surface area (BSA) comparison) resulted in no significant increases in tumor incidence.
In a dermal carcinogenicity study conducted in albino mice, daily topical applications of a diclofenac sodium gel product for two years at concentrations up to 0.035% diclofenac sodium (a 29-fold lower diclofenac sodium concentration than present in VOLTAREN® GEL) did not increase neoplasm incidence.
In a photococarcinogenicity study conducted in hairless mice, topical application of a diclofenac sodium gel product at doses up to 0.035% diclofenac sodium (a 29-fold lower diclofenac sodium concentration than present in VOLTAREN® GEL) resulted in an earlier median time of onset of tumors.
Mutagenesis
Diclofenac was not mutagenic or clastogenic in a battery of genotoxicity tests that included the bacterial reverse mutation assay, in vitro mouse lymphoma point mutation assay, chromosomal aberration studies in Chinese hamster ovarian cells in vitro, and in vivo rat chromosomal aberration assay of bone marrow cells.
Impairment of Fertility
Diclofenac did not affect male or female fertility in rats at doses up to 4 mg/kg/day (approximately 2 times than the maximum human topical dose of VOLTAREN® GEL based on bioavailability and BSA comparison).
Study 1 evaluated the efficacy of VOLTAREN® GEL for the treatment of osteoarthritis of the knee in a 12-week, randomized, double-blind, multicenter, placebo-controlled, parallel-group trial. VOLTAREN® GEL was administered at a dose of 4 g, 4 times daily, on 1 knee (16 g per day). Pain as assessed by the patients at Week 12 using the WOMAC (Western Ontario and McMaster Universities Osteoarthritis Index) Pain Subindex was lower in the VOLTAREN® GEL group than the placebo group.
Study 2 evaluated the efficacy of VOLTAREN® GEL for the treatment of osteoarthritis in subjects with osteoarthritis of the hand in an 8-week, randomized, double-blind, multicenter, placebo-controlled, parallel-group study. VOLTAREN® GEL was administered at a dose of 2 g per hand, 4 times daily, on both hands (16 g per day). Pain in the target hand as assessed by the patients at Weeks 4 and 6 on a visual analog scale from 0 to 100 was lower in the VOLTAREN® GEL group than the placebo group.
VOLTAREN® GEL |
Placebo (Vehicle) |
Adjusted Difference (Placebo - VOLTAREN® GEL ) |
||
Study 1 (Knee)
|
Sample Size |
127 |
119 | |
Mean Outcome |
28 |
37 |
∆ = 7† |
|
95% Confidence Interval |
(1, 12) |
|||
Study 2 (Hand)
|
Sample Size |
198 |
187 | |
Mean Outcome |
43 |
50 |
∆ = 7 ‡ |
|
95% Confidence Interval |
(2, 12) |
|||
Study 2 (Hand)
|
Sample Size |
198 |
187 | |
Mean Outcome |
40 |
47 |
∆ = 7 ‡ |
|
95% Confidence Interval |
(1, 13) |
* WOMAC = Western Ontario McMaster Osteoarthritis Index.
# Scale from 0 (best) to 100 (worst).
† Difference is adjusted using an analysis of covariance (ANCOVA) model with main effects of treatment and center and baseline covariate.
‡ Difference is adjusted using an analysis of covariance (ANCOVA) model with main effects of treatment, center, indicator of pain in the CMC-1 joint, and baseline as a covariate, and the treatment-by-CMC-1 strata.
Advise the patient to read the FDA-approved patient labeling (Medication Guide and Instructions for Use) that accompanies each prescription dispensed. Patients, families, or their caregivers should be informed of the following information before initiating therapy with VOLTAREN® GEL and periodically during the course of ongoing therapy.
Cardiovascular Thrombotic Events
Advise patients to be alert for the symptoms of cardiovascular thrombotic events, including chest pain, shortness of breath, weakness, or slurring of speech, and to report any of these symptoms to their health care provider immediately [see Warnings and Precautions (5.1)].
Gastrointestinal Bleeding, Ulceration, and Perforation
Advise patients to report symptoms of ulcerations and bleeding, including epigastric pain, dyspepsia, melena, and hematemesis to their health care provider. In the setting of concomitant use of low-dose aspirin for cardiac prophylaxis, inform patients of the increased risk for and the signs and symptoms of GI bleeding [see Warnings and Precautions (5.2)].
Hepatotoxicity
Inform patients of the warning signs and symptoms of hepatotoxicity (e.g., nausea, fatigue, lethargy, pruritus, diarrhea, jaundice, right upper quadrant tenderness, and “flu-like” symptoms). If these occur, instruct patients to stop VOLTAREN® GEL and seek immediate medical therapy [see Warnings and Precautions (5.3)].
Heart Failure and Edema
Advise patients to be alert for the symptoms of congestive heart failure including shortness of breath, unexplained weight gain, or edema and to contact their healthcare provider if such symptoms occur [see Warnings and Precautions (5.5)].
Anaphylactic Reactions
Inform patients of the signs of an anaphylactic reaction (e.g., difficulty breathing, swelling of the face or throat). Instruct patients to seek immediate emergency help if these occur [see Contraindications (4) and Warnings and Precautions (5.7)].
Serious Skin Reactions
Advise patients to stop VOLTAREN® GEL immediately if they develop any type of rash and to contact their healthcare provider as soon as possible [see Warnings and Precautions (5.9)].
Female Fertility
Advise females of reproductive potential who desire pregnancy that NSAIDs, including VOLTAREN® GEL, may be associated with a reversible delay in ovulation [see Use in Specific Populations (8.3)]
Fetal Toxicity
Inform pregnant women to avoid use of VOLTAREN® GEL and other NSAIDs starting at 30 weeks gestation because of the risk of the premature closing of the fetal ductus arteriosus [see Warnings and Precautions (5.10) and Use in Specific Populations (8.1)].
Avoid Concomitant Use of NSAIDs
Inform patients that the concomitant use of VOLTAREN® GEL with other NSAIDs or salicylates (e.g., diflunisal, salsalate) is not recommended due to the increased risk of gastrointestinal toxicity, and little or no increase in efficacy [see Warnings and Precautions (5.2) and Drug Interactions (7)]. Alert patients that NSAIDs may be present in "over the counter" medications for treatment of colds, fever, or insomnia.
Use of NSAIDS and Low-Dose Aspirin
Inform patients not to use low-dose aspirin concomitantly with VOLTAREN® GEL until they talk to their healthcare provider [see Drug Interactions (7)].
Eye Exposure
Instruct patients to avoid contact of VOLTAREN® GEL with the eyes and mucosa, although not studied, should be avoided. Advise patients that if eye contact occurs, immediately wash out the eye with water or saline and consult a physician if irritation persists for more than an hour [see Warnings and Precautions (5.15)].
Special Application Instructions
Instruct patients how to use the dosing card to measure the proper dose of VOLTAREN® GEL to apply.
If the patient loses their dosing card, instruct them that they can call 1-800-398-5876 to request a replacement dosing card or ask their pharmacist for a new dosing card.
Instruct patients how to correctly measure the 2.25 inches (2 g) dose or 4.5 inches (4 g) dose while waiting for a replacement dosing card [see Dosage and Administration (2.2)].
Instruct patients not to apply VOLTAREN® GEL to open skin wounds, infections, inflammations, or exfoliative dermatitis, as it may affect absorption and tolerability of the drug.
Instruct patients to avoid concomitant use of VOLTAREN® GEL with other topical products, including sunscreens, cosmetics, lotions, moisturizers, and insect repellants. Concomitant use may result in skin reactions or change the absorption of VOLTAREN® GEL.
Instruct patients to minimize or avoid exposure of treated areas to natural or artificial sunlight [see Warnings and Precautions (5.14) and Dosage and Administration (2.4)].
Comments or Questions?
Call toll-free 1-800-398-5876
Marketed by:
Endo Pharmaceuticals Inc.
Malvern, PA 19355
Manufactured by:
Wehr, Germany for
Sandoz Inc., Princeton, NJ 08540
Revised: April 2016
Medication Guide for Nonsteroidal Anti-Inflammatory Drugs (NSAIDs)
What is the most important information I should know about medicines called Nonsteroidal Anti-Inflammatory Drugs (NSAIDs)?
NSAIDs can cause serious side effects, including:
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.
The risk of getting an ulcer or bleeding increases with:
NSAIDs should only be used:
What are NSAIDs?
NSAIDs 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 NSAIDs?
Do not take NSAIDs :
Before taking NSAIDs, tell your healthcare provider about all of your medical conditions, including if you:
Tell your healthcare provider all of the medicines you take, including prescription or over-the-counter medicines, vitamins or herbal supplements. NSAIDs and some other medicines can interact with each other and cause serious side effects. Do not start taking any new medicine without talking to your healthcare provider first.
What are the possible side effects of NSAIDs?
NSAIDs can cause serious side effects, including:
See “What is the most important information I should know about medicines called Nonsteroidal Anti-inflammatory Drugs (NSAIDs)?”
Get emergency help right away if you have any of the following symptoms:
Stop taking your NSAID and call your healthcare provider right away if you get any of the following symptoms:
If you take too much of your NSAID, call your healthcare provider or get medical help right away.
These are not all the possible side effects of NSAIDs. For more information, ask your healthcare provider or pharmacist about NSAIDs.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Other information about NSAIDs
General Information about the safe and effective use of NSAIDs
Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use NSAIDs for a condition for which it was not prescribed. Do not give NSAIDs to other people, even if they have the same symptoms that you have. It may harm them.
If you would like more information about NSAIDs, talk with your healthcare provider. You can ask your pharmacist or healthcare provider for information about NSAIDs that is written for health professionals.
This Medication Guide has been approved by the U.S. Food and Drug Administration.
Marketed by:
Manufactured by:
Novartis Pharma Produktions GmbH,
Wehr, Germany for
Sandoz Inc., Princeton, NJ 08540
Revised: April 2016
VOLTAREN® GEL (diclofenac sodium)
Important: Use the dosing card that is inside the VOLTAREN® GEL carton to correctly measure each dose. The dosing card is re-usable. Do not throw the dosing card away. Before you use VOLTAREN® GEL for the first time, your healthcare provider or pharmacist should show you how to correctly measure your dose using the dosing card.
Read this Instructions for Use before you start using VOLTAREN® GEL and each time you get a refill. There may be new information. This information does not take the place of talking to your healthcare provider about your medical condition or your treatment.
Your healthcare provider has prescribed VOLTAREN® GEL to help relieve arthritis pain in some of your joints. VOLTAREN® GEL may be used to treat arthritis pain in the arms (hands, wrists, and elbows) and in the legs (feet, ankles, and knees). It is not known if VOLTAREN® GEL is safe and effective if used on your spine, hips, or shoulders.
The dose for your hands, wrists, or elbows is 2 grams of VOLTAREN® GEL each time you apply it.
The dose for your feet, ankles, or knees is 4 grams of VOLTAREN® GEL each time you apply it.
Some examples of VOLTAREN® GEL application include:
What if I miss a dose?
Applying 2 grams (2 g) of VOLTAREN® GEL to hands, wrists, or elbows:
Step 1. Remove the dosing card that is attached inside the VOLTAREN® GEL carton. Use the dosing card to correctly measure each dose of VOLTAREN® GEL. To measure the correct amount of VOLTAREN® GEL, place the dosing card on a flat surface so that you can read the print. If the print is backwards, flip dosing card over (see Figure A). If you lose or misplace your dosing card, you can ask your pharmacist for a new one or call 1-800-452-0051. Ask your healthcare provider or pharmacist to show you how to correctly measure your dose of VOLTAREN® GEL while you are waiting to receive your new dosing card.
Step 2. Squeeze VOLTAREN® GEL onto the dosing card evenly, up to the 2 g line (a 2.25 inch length of gel). Make sure that the gel covers the 2 g area of the dosing card (see Figure B). Put the cap back on the tube of VOLTAREN® GEL. Ask your healthcare provider or pharmacist if you are not sure how to correctly measure your dose of VOLTAREN® GEL.
Step 3. Apply the gel to your hand, wrist, or elbow. You can use the dosing card to apply the gel (see Figure C). Then, use your hands to gently rub the gel into the skin (see Figure D). Do not share your dosing card with another person. Make sure to cover the entire affected hand, wrist, or elbow with the gel. Remember that the hand includes the palm of your hand, the top of your hand, and your fingers.
Step 4. After using the dosing card, hold end with fingertips, rinse and dry. Store the dosing card until next use. Do not shower or bathe for at least 1 hour after applying VOLTAREN® GEL. Do not wash your treated hands for at least 1 hour after applying the VOLTAREN® GEL.
Step 5. After applying VOLTAREN® GEL, wait 10 minutes before covering the treated skin with gloves or clothing.
Applying 4 grams (4 g) of VOLTAREN® GEL to feet, ankles, or knees:
Step 2. Squeeze VOLTAREN® GEL onto the dosing card evenly up to the 4 g line (a 4.5 inch length of gel), making sure the gel covers the 4 g area of the dosing card (see Figure E). Put the cap back on the tube of VOLTAREN® GEL. Ask your healthcare provider or pharmacist if you are not sure how to correctly measure your dose of VOLTAREN® GEL.
Step 3. Apply VOLTAREN® GEL to your foot, ankle, or knee. You can use the dosing card to apply the gel (see Figure F). Then, use your hands to gently rub the gel into the skin (see Figure G). Do not share your dosing card with another person. Make sure to cover your entire foot, ankle, or knee area with the gel. For example, cover the skin above, below, inside and outside the knee cap. Remember that the foot includes the sole of your foot, the top of your foot, and your toes.
Refer to Steps 4 and 5 above. Wash your hands after applying VOLTAREN® GEL to your foot, ankle, or knee.
What are the ingredients in VOLTAREN® GEL?
Active ingredient: diclofenac sodium
Inactive ingredients: carbomer homopolymer Type C, cocoyl caprylocaprate, fragrance, isopropyl alcohol, mineral oil, polyoxyl 20 cetostearyl ether, propylene glycol, purified water, and strong ammonia solution.
How should I store VOLTAREN® GEL? Store at 20°C to 25°C (68°F to 77°F). Do not freeze VOLTAREN® GEL. Store the dosing card with your VOLTAREN® GEL.
Keep VOLTAREN® GEL, the dosing card, and all medicines out of the reach of children.
This Medication Guide and Instructions for Use have been approved by the U.S. Food and Drug Administration.
Marketed by:
Endo Pharmaceuticals Inc., Malvern, PA 19355
Manufactured by:
Novartis Pharma Produktions GmbH,
Wehr, Germany for
Sandoz Inc., Princeton, NJ 08540
Revised: April 2016
VOLTAREN
diclofenac sodium gel |
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Labeler - Bryant Ranch Prepack (171714327) |
Establishment | |||
Name | Address | ID/FEI | Business Operations |
---|---|---|---|
Bryant Ranch Prepack | 171714327 | REPACK(63629-4941) , RELABEL(63629-4941) |
Mark Image Registration | Serial | Company Trademark Application Date |
---|---|
VOLTAREN 97900726 not registered Live/Pending |
Novartis AG 2023-04-21 |
VOLTAREN 97799814 not registered Live/Pending |
Novartis AG 2023-02-17 |
VOLTAREN 97733998 not registered Live/Pending |
Novartis AG 2022-12-28 |
VOLTAREN 87617485 5452825 Live/Registered |
Novartis Corporation 2017-09-21 |
VOLTAREN 79225039 5478104 Live/Registered |
NOVARTIS AG 2017-08-31 |
VOLTAREN 79072252 3767722 Dead/Cancelled |
Novartis AG 2009-07-10 |
VOLTAREN 73557006 1394620 Dead/Cancelled |
CIBA-GEIGY CORPORATION 1985-09-05 |
VOLTAREN 72422688 0960282 Live/Registered |
CIBA-GEIGY LIMITED 1972-04-28 |