Sumatriptan Succinate and Naproxen Sodium

INDICATIONS AND USAGE Sumatriptan and Naproxen Sodium Tablets is indicated for the acute treatment of migraine with or without aura in adults and pediatric patients 12 years of age and older. Sumatriptan and Naproxen Sodium Tablets is a combination of sumatriptan, a serotonin (5-HT) 1b/1d receptor agonist (triptan), and naproxen sodium, a non-steroidal anti-inflammatory drug, indicated for the acute treatment of migraine with or without aura in adults and pediatric patients 12 years of age and older. ( 1 ) Limitations of Use: Use only if a clear diagnosis of migraine headache has been established. ( 1 ) Not indicated for the prophylactic therapy of migraine attacks. ( 1 ) Not indicated for the treatment of cluster headache. ( 1 ) Limitations of Use: Use only if a clear diagnosis of migraine headache has been established. If a patient has no response to the first migraine attack treated with Sumatriptan and Naproxen Sodium Tablets, reconsider the diagnosis of migraine before Sumatriptan and Naproxen Sodium Tablets is administered to treat any subsequent attacks. Sumatriptan and Naproxen Sodium Tablets is not indicated for the prevention of migraine attacks. Safety and effectiveness of Sumatriptan and Naproxen Sodium Tablets have not been established for cluster headache.

DOSAGE AND ADMINISTRATION Adults Recommended dosage: 1 tablet of 85/500 mg. ( 2.1 ) Maximum dosage in a 24-hour period: 2 tablets of 85/500 mg; separate doses by at least 2 hours. ( 2.1 ) Pediatric Patients 12 to 17 years of Age Recommended dosage: 1 tablet of 10/60 mg. ( 2.2 ) Maximum dosage in a 24-hour period: 1 tablet of 85/500 mg. Mild to Moderate Hepatic Impairment Recommended dosage: 1 tablet of 10/60 mg. ( 2.3 , 8.7 ) 2.1 Dosage in Adults The recommended dosage for adults is 1 tablet of Sumatriptan and Naproxen Sodium Tablets 85/500 mg. Sumatriptan and Naproxen Sodium Tablets 85/500 mg contains a dose of sumatriptan higher than the lowest effective dose. The choice of the dose of sumatriptan, and of the use of a fixed combination such as in Sumatriptan and Naproxen Sodium Tablets 85/500 mg should be made on an individual basis, weighing the possible benefit of a higher dose of sumatriptan with the potential for a greater risk of adverse reactions. The maximum recommended dosage in a 24-hour period is 2 tablets, taken at least 2 hours apart. The safety of treating an average of more than 5 migraine headaches in adults in a 30-day period has not been established. Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals [see Warnings and Precautions (5) ] . 2.2 Dosage in Pediatric Patients 12 to 17 Years of Age The recommended dosage for pediatric patients 12 to 17 years of age is 1 tablet of Sumatriptan and Naproxen Sodium Tablets 10/60 mg. The maximum recommended dosage in a 24-hour period is 1 tablet of Sumatriptan and Naproxen Sodium Tablets 85/500 mg. The safety of treating an average of more than 2 migraine headaches in pediatric patients in a 30-day period has not been established. Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals [see Warnings and Precautions (5) ] . 2.3 Dosing in Patients with Hepatic Impairment Sumatriptan and Naproxen Sodium Tablets is contraindicated in patients with severe hepatic impairment [see Contraindications (4) , Use in Specific Populations (8.7) , Clinical Pharmacology (12.3) ] . In patients with mild to moderate hepatic impairment, the recommended dosage in a 24-hour period is 1 tablet of Sumatriptan and Naproxen Sodium Tablets 10/60 mg [see Use in Specific Populations (8.7) , Clinical Pharmacology (12.3) ] . Use the lowest effective dosage for the shortest duration consistent with individual patient treatment goals [see Warnings and Precautions (5) ] . 2.4 Administration Information Sumatriptan and Naproxen Sodium Tablets may be administered with or without food. Tablets should not be split, crushed, or chewed.

WARNINGS AND PRECAUTIONS Cardiovascular Thrombotic Events: Perform cardiac evaluation in patients with cardiovascular risk factors. ( 5.1 ) Arrhythmias: Discontinue TREXIMET if occurs. ( 5.3 ) Chest, Throat, Neck, and/or Jaw Pain/Tightness/Pressure: Generally not associated with myocardial ischemia; evaluate for coronary artery disease in patients at high risk. ( 5.4 ) Cerebrovascular Events: Discontinue TREXIMET if occurs. ( 5.5 ) Other Vasospasm Reactions: Discontinue TREXIMET if non-coronary vasospastic reaction occurs. ( 5.6 ) Hepatotoxicity: Inform patients of warning signs and symptoms of hepatotoxicity. Discontinue if abnormal liver tests persist or worsen or if clinical signs and symptoms of liver disease develop. ( 5.7 ) Hypertension: Patients taking some antihypertensive medications may have impaired response to these therapies when taking NSAIDs. Monitor blood pressure. ( 5.8 ) Heart Failure and Edema: Avoid use of TREXIMET in patients with severe heart failure unless benefits are expected to outweigh risk of worsening heart failure. ( 5.9 ) Medication Overuse Headache: Detoxification may be necessary. ( 5.10 ) Serotonin Syndrome: Discontinue TREXIMET if occurs. ( 5.11 ) Renal Toxicity and Hyperkalemia: Monitor renal function in patients with renal or hepatic impairment, heart failure, dehydration, or hypovolemia. Avoid use of TREXIMET in patients with advanced renal disease. ( 5.12 ) Anaphylactic Reactions: TREXIMET should not be given to patients with the aspirin triad. Seek emergency help if an anaphylactic reaction occurs. ( 5.13 ) Serious Skin Reactions: Discontinue TREXIMET at first sign of rash or other signs of hypersensitivity. ( 5.14 ) Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS): Discontinue and evaluate clinically. ( 5.15 ) Fetal Toxicity: Limit use of NSAIDs, including TREXIMET, between about 20 to 30 weeks in pregnancy due to the risk of oligohydramnios/fetal renal dysfunction. Avoid use of NSAIDs in women at about 30 weeks gestation and later in pregnancy due to the risks of oligohydramnios/fetal renal dysfunction and premature closure of the fetal ductus arteriosus. ( 5.16 , 8.1 ) Hematologic Toxicity: Monitor hemoglobin or hematocrit in patients with any signs or symptoms of anemia. ( 5.17 ) Exacerbation of Asthma Related to Aspirin Sensitivity: TREXIMET is contraindicated in patients with aspirin-sensitive asthma. Monitor patients with preexisting asthma (without aspirin sensitivity). ( 5.18 ) 5.1 Cardiovascular Thrombotic Events The use of TREXIMET is contraindicated in patients with ischemic or vasospastic coronary artery disease (CAD) and in the setting of coronary artery bypass graft (CABG) surgery due to increased risk of serious cardiovascular events with sumatriptan and NSAIDS [see Contraindications (4) ] . Cardiovascular Events with Sumatriptan There have been rare reports of serious cardiac adverse reactions, including acute myocardial infarction, occurring within a few hours following administration of sumatriptan. Some of these reactions occurred in patients without known CAD. TREXIMET may cause coronary artery vasospasm (Prinzmetal's angina), even in patients without a history of CAD. Cardiovascular Thrombotic Events with Nonsteroidal Anti-inflammatory Drugs 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 [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. Perform a cardiovascular evaluation in patients who have multiple cardiovascular risk factors (e.g., increased age, diabetes, hypertension, smoking, obesity, strong family history of CAD) prior to receiving TREXIMET. If there is evidence of CAD or coronary artery vasospasm, TREXIMET is contraindicated. For patients with multiple cardiovascular risk factors who have a negative cardiovascular evaluation, consider administering the first dose of TREXIMET in a medically supervised setting and performing an electrocardiogram (ECG) immediately following administration of TREXIMET. For such patients, consider periodic cardiovascular evaluation in intermittent long-term users of TREXIMET. Physicians and patients should remain alert for the development of cardiovascular events, even in the absence of previous cardiovascular symptoms. Patients should be informed about the signs and/or symptoms of serious cardiovascular events and the steps to take if they occur. 5.2 Gastrointestinal Bleeding, Ulceration, and Perforation NSAIDs, including naproxen, a component of TREXIMET, cause serious gastrointestinal adverse events including inflammation, bleeding, ulceration, and perforation of the 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 1 in 5 patients who develop a serious upper gastrointestinal adverse event on NSAID therapy is symptomatic. Upper gastrointestinal ulcers, gross bleeding, or perforation caused by NSAIDs appear to occur in approximately 1% of patients treated daily for 3 to 6 months and in about 2% to 4% of patients treated for 1 year. However, even short-term therapy is not without risk. Among 3,302 adult patients with migraine who received TREXIMET in controlled and uncontrolled clinical trials, 1 patient experienced a recurrence of gastric ulcer after taking 8 doses over 3 weeks, and 1 patient developed a gastric ulcer after treating an average of 8 attacks per month over 7 months.

CONTRAINDICATIONS Sumatriptan and Naproxen Sodium Tablets is contraindicated in the following patients: Ischemic coronary artery disease (CAD) (angina pectoris, history of myocardial infarction, or documented silent ischemia) or coronary artery vasospasm, including Prinzmetal's angina [see Warnings and Precautions (5.1) ]. In the setting of coronary artery bypass graft (CABG) surgery [see Warnings and Precautions (5.1) ] . Wolff-Parkinson-White syndrome or arrhythmias associated with other cardiac accessory conduction pathway disorders [see Warnings and Precautions (5.3) ] . History of stroke or transient ischemic attack (TIA) or history of hemiplegic or basilar migraine because these patients are at a higher risk of stroke [s ee Warnings and Precautions (5.5) ]. Peripheral vascular disease [see Warnings and Precautions (5.6) ]. Ischemic bowel disease [see Warnings and Precautions (5.6) ]. Uncontrolled hypertension [see Warnings and Precautions (5.8) ]. Recent use (i.e., within 24 hours) of ergotamine-containing medication, ergot-type medication (such as dihydroergotamine or methysergide), or another 5-hydroxytryptamine 1 (5-HT 1 ) agonist [see Drug Interactions (7) ]. Concurrent administration of a monoamine oxidase (MAO)-A inhibitor or recent (within 2 weeks) use of an MAO-A inhibitor [see Drug Interactions (7) , Clinical Pharmacology (12.3) ]. History of asthma, urticaria, or allergic-type reactions after taking aspirin or other NSAIDs. Severe, sometimes fatal, anaphylactic reactions to NSAIDs have been reported in such patients [see Warnings and Precautions (5.13 , 5.14 , 5.18) ] . Known hypersensitivity (e.g., anaphylactic reactions, angioedema, and serious skin reactions) to sumatriptan, naproxen, or any components of Sumatriptan and Naproxen Sodium Tablets [see Warnings and Precautions (5.14) ]. Severe hepatic impairment [see Warnings and Precautions (5.7) , Use in Specific Populations (8.7) , Clinical Pharmacology (12.3) ]. History of coronary artery disease or coronary vasospasm. ( 4 ) In the setting of CABG surgery. ( 4 ) Wolff-Parkinson-White syndrome or other cardiac accessory conduction pathway disorders. ( 4 ) History of stroke, transient ischemic attack, or hemiplegic or basilar migraine. ( 4 ) Peripheral vascular disease. ( 4 ) Ischemic bowel disease. ( 4 ) Uncontrolled hypertension. ( 4 ) Recent (within 24 hours) use of another 5-HT 1 agonist (e.g., another triptan) or of ergotamine-containing medication. ( 4 ) Concurrent or recent (past 2 weeks) use of monoamine oxidase-A inhibitor. ( 4 ) History of asthma, urticaria, other allergic type reactions, rhinitis, or nasal polyps syndrome after taking aspirin or other NSAID/analgesic drugs. ( 4 ) Known hypersensitivity to sumatriptan, naproxen, or any components of Sumatriptan and Naproxen Sodium Tablets (angioedema and anaphylaxis seen). ( 4 ) Severe hepatic impairment. ( 4 )

DRUG INTERACTIONS Drugs that Interfere with Hemostasis (e.g. warfarin, aspirin, SSRIs/SNRIs): Monitor patients for bleeding who are concomitantly taking TREXIMET with drugs that interfere with hemostasis. Concomitant use of TREXIMET and analgesic doses of aspirin is not generally recommended. ( 7.1 ) ACE Inhibitors and ARBs: Concomitant use with TREXIMET in elderly, volume depleted, or those with renal impairment may result in deterioration of renal function. In such high risk patients, monitor for signs of worsening renal function. ( 7.1 ) Diuretics: NSAIDs can reduce natriuretic effect of loop and thiazide diuretics. Monitor patients to assure diuretic efficacy including antihypertensive effects. ( 7.1 ) Digoxin: Concomitant use with TREXIMET can increase serum concentration and prolong half-life of digoxin. Monitor serum digoxin levels. ( 7.1 ) Lithium: Increases lithium plasma levels. ( 7.1 ) Methotrexate: Increases methotrexate plasma levels. ( 7.1 ) 7.1 Clinically Significant Drug Interactions with TREXIMET See Table 3 for clinically significant drug interactions with NSAIDs or Sumatriptan. Table 3. Clinically Significant Drug Interactions with Naproxen or Sumatriptan Ergot-Containing Drugs Clinical Impact: Ergot-containing drugs have been reported to cause prolonged vasospastic reactions. Intervention: Because these effects may be additive, coadministration of TREXIMET and ergotamine-containing or ergot-type medications (like dihydroergotamine or methysergide) within 24 hours of each other is contraindicated. Monoamine Oxidase-A Inhibitors Clinical Impact: MAO-A inhibitors increase systemic exposure of orally administered sumatriptan by 7-fold. Intervention: The use of TREXIMET in patients receiving MAO-A inhibitors is contraindicated. Other 5-HT 1 Agonists Clinical Impact: 5-HT 1 agonist drugs can cause vasospastic effects. Intervention: Because these effects may be additive, coadministration of TREXIMET and other 5 HT 1 agonists (e.g., triptans) within 24 hours of each other is contraindicated. Drugs That Interfere with Hemostasis Clinical Impact: Naproxen and anticoagulants such as warfarin have a synergistic effect on bleeding. The concomitant use of naproxen and anticoagulants have an increased risk of serious bleeding compared to the use of either drug alone. Serotonin release by platelets plays an important role in hemostasis. Case-control and cohort epidemiological studies showed that concomitant use of drugs that interfere with serotonin reuptake and an NSAID may potentiate the risk of bleeding more than an NSAID alone. Intervention: Monitor patients with concomitant use of TREXIMET with anticoagulants (e.g., warfarin), antiplatelet agents (e.g., aspirin), selective serotonin reuptake inhibitors (SSRIs), and serotonin norepinephrine reuptake inhibitors (SNRIs) for signs of bleeding [see Warnings and Precautions (5.17) ] . Aspirin Clinical Impact: A pharmacodynamic (PD) study has demonstrated an interaction in which lower dose naproxen (220mg/day or 220mg twice daily) interfered with the antiplatelet effect of low-dose immediate-release aspirin, with the interaction most marked during the washout period of naproxen [see Clinical Pharmacology (12.2) ] . There is reason to expect that the interaction would be present with prescription doses of naproxen or with enteric-coated low-dose aspirin; however, the peak interference with aspirin function may be later than observed in the PD study due to the longer washout period. Controlled clinical studies showed that the concomitant use of NSAIDs and analgesic doses of aspirin does not produce any greater therapeutic effect than the use of NSAIDs alone. In a clinical study, the concomitant use of an NSAID and aspirin was associated with a significantly increased incidence of GI adverse reactions as compared to use of the NSAID alone [see Warnings and Precautions (5.2) and Clinical Pharmacology (12.3) ] . Intervention: Because there may be an increased risk of cardiovascular events following discontinuation of naproxen due to the interference with the antiplatelet effect of aspirin during the washout period, for patients taking low-dose aspirin for cardioprotection who require intermittent analgesics, consider use of an NSAID that does not interfere with the antiplatelet effect of aspirin, or non-NSAID analgesics where appropriate. Concomitant use of TREXIMET and analgesic doses of aspirin is not generally recommended because of the increased risk of bleeding [see Warnings and Precautions (5.17) ] . Selective Serotonin Reuptake Inhibitors/Serotonin Norepinephrine Reuptake Inhibitors and Serotonin Syndrome Clinical Impact: Cases of serotonin syndrome have been reported during coadministration of triptans and SSRIs, SNRIs, TCAs, and MAO inhibitors [see Warnings and Precautions (5.11) ] . Intervention: Discontinue TREXIMET if serotonin syndrome is suspected. ACE Inhibitors, Angiotensin Receptor Blockers, and Beta-blockers Clinical Impact: NSAIDs may diminish the antihypertensive effect of angiotensin converting enzyme (ACE) inhibitors, angiotensin receptor blockers (ARBs), or beta-blockers (including propranolol). In patients who are elderly, volume-depleted (including those on diuretic therapy), or have renal impairment, co-administration of an NSAID with ACE inhibitors or ARBs may result in deterioration of renal function, including possible acute renal failure. These effects are usually reversible. Intervention: During concomitant use of TREXIMET and ACE-inhibitors, ARBs, or beta-blockers, monitor blood pressure to ensure that the desired blood pressure is obtained [see Warnings and Precautions (5.8) ] . During concomitant use of TREXIMET and ACE-inhibitors or ARBs in patients who are elderly, volume-depleted, or have impaired renal function, monitor for signs of worsening renal function [see Warnings and Precautions (5.8) ]. Diuretics Clinical Impact: Clinical studies, as well as post-marketing observations, showed that NSAIDs reduced the natriuretic effect of loop diuretics (e.g., furosemide) and thiazide diuretics in some patients. This effect has been attributed to the NSAID inhibition of renal prostaglandin synthesis. Intervention: During concomitant use of TREXIMET with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [see Warnings and Precautions (5.8 , 5.12) ] . Digoxin Clinical Impact: The concomitant use of naproxen with digoxin has been reported to increase the serum concentration and prolong the half-life of digoxin. Intervention: During concomitant use of TREXIMET and digoxin, monitor serum digoxin levels. Lithium Clinical Impact: NSAIDs have produced elevations in plasma lithium levels and reductions in renal lithium clearance . The mean minimum lithium concentration increased 15%, and the renal clearance decreased by approximately 20%. This effect has been attributed to NSAID inhibition of renal prostaglandin synthesis. Intervention: During concomitant use of TREXIMET and lithium, monitor patients for signs of lithium toxicity. Methotrexate Clinical Impact: Concomitant administration of some NSAIDs with high-dose methotrexate therapy has been reported to elevate and prolong serum methotrexate levels, resulting in deaths from severe hematologic and gastrointestinal toxicity. Concomitant use of NSAIDs and methotrexate may increase the risk for methotrexate toxicity (e.g., neutropenia, thrombocytopenia, renal dysfunction). Intervention: During concomitant use of TREXIMET and methotrexate, monitor patients for methotrexate toxicity. Cyclosporine Clinical Impact: Concomitant use of NSAIDs and cyclosporine may increase cyclosporine's nephrotoxicity. Intervention: During concomitant use of TREXIMET and cyclosporine, monitor patients for signs of worsening renal function. NSAIDs and Salicylates Clinical Impact: Concomitant use of naproxen with other NSAIDs or salicylates (e.g., diflunisal, sals

ADVERSE REACTIONS The following serious adverse reactions are described below and elsewhere in labeling: Cardiovascular Thrombotic Events [see Warnings and Precautions (5.1) ] GI Bleeding, Ulceration and Perforation [see Warnings and Precautions (5.2) ] Arrhythmias [see Warnings and Precautions (5.3) ] Chest, Throat, Neck, and/or Jaw Pain/Tightness/Pressure [see Warnings and Precautions (5.4) ] Cerebrovascular Events [see Warnings and Precautions (5.5) ] Other Vasospasm Reactions [see Warnings and Precautions (5.6) ] Hepatotoxicity [see Warnings and Precautions (5.7) ] Hypertension [see Warnings and Precautions (5.8) ] Heart Failure and Edema [see Warnings and Precautions (5.9) ] Medication Overuse Headache [see Warnings and Precautions (5.10) ] Serotonin Syndrome [see Warnings and Precautions (5.11) ] Renal Toxicity and Hyperkalemia [see Warnings and Precautions (5.12) ] Anaphylactic Reactions [see Warnings and Precautions (5.13) ] Serious Skin Reactions [see Warnings and Precautions (5.14) ] Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) [see Warnings and Precautions (5.15) ] Hematological Toxicity [see Warnings and Precautions (5.17) ] Exacerbation Asthma Related to Aspirin Sensitivity [see Warnings and Precautions (5.18) ] Seizures [see Warnings and Precautions (5.19) ] The most common adverse reactions (incidence ≥2%) were: Adults: Dizziness, somnolence, nausea, chest discomfort/chest pain, neck/throat/jaw pain/tightness/pressure, paresthesia, dyspepsia, dry mouth. ( 6.1 ) Pediatrics: Hot flush (i.e., hot flash[es]) and muscle tightness. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Currax Pharmaceuticals LLC at 1-800-793-2145 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience 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. Adults The adverse reactions reported below are specific to the clinical trials with Sumatriptan and Naproxen Sodium Tablets 85/500 mg. See also the full prescribing information for naproxen and sumatriptan products. Table 1 lists adverse reactions that occurred in 2 placebo-controlled clinical trials (Study 1 and 2) in adult patients who received 1 dose of study drug. Only adverse reactions that occurred at a frequency of 2% or more in any group treated with Sumatriptan and Naproxen Sodium Tablets 85/500 mg and that occurred at a frequency greater than the placebo group are included in Table 1. Table 1. Adverse Reactions in Pooled Placebo-Controlled Trials in Adult Patients with Migraine Adverse Reactions Sumatriptan and Naproxen Sodium Tablets 85/500 mg % (n = 737) Placebo % (n = 752) Sumatriptan 85 mg % (n = 735) Naproxen Sodium 500 mg % (n = 732) Nervous system disorders Dizziness 4 2 2 2 Somnolence 3 2 2 2 Paresthesia 2 <1 2 <1 Gastrointestinal disorders Nausea 3 1 3 <1 Dyspepsia 2 1 2 1 Dry mouth 2 1 2 <1 Pain and other pressure sensations Chest discomfort/chest pain 3 <1 2 1 Neck/throat/jaw pain/tightness/pressure 3 1 3 1 The incidence of adverse reactions in controlled clinical trials was not affected by gender or age of the patients. There were insufficient data to assess the impact of race on the incidence of adverse reactions. Pediatric Patients 12 to 17 Years of Age In a placebo-controlled clinical trial that evaluated pediatric patients 12 to 17 years of age who received 1 dose of Sumatriptan and Naproxen Sodium Tablets 10/60 mg, 30/180 mg, or 85/500 mg, adverse reactions occurred in 13% of patients who received 10/60 mg, 9% of patients who received 30/180 mg, 13% who received 85/500 mg, and 8% who received placebo. No patients who received Sumatriptan and Naproxen Sodium Tablets experienced adverse reactions leading to withdrawal from the trial. The incidence of adverse reactions in pediatric patients 12 to 17 years of age was comparable across all 3 doses compared with placebo. Table 2 lists adverse reactions that occurred in a placebo-controlled trial in pediatric patients 12 to 17 years of age at a frequency of 2% or more with Sumatriptan and Naproxen Sodium Tablets and were more frequent than the placebo group. Table 2. Adverse Reactions in a Placebo-Controlled Trial in Pediatric Patients 12 to 17 Years of Age with Migraine Adverse Reactions Sumatriptan and Naproxen Sodium Tablets 10/60 mg % Sumatriptan and Naproxen Sodium Tablets 30/180 mg % Sumatriptan and Naproxen Sodium Tablets 85/500 mg % Placebo % (n = 96) (n = 97) (n = 152) (n = 145) Vascular Hot flush (i.e., hot flash[es]) 0 2 <1 0 Musculoskeletal Muscle tightness 0 0 2 0 6.2 Postmarketing Experience The following adverse reactions have been identified during post-approval use of NSAIDs, such as naproxen, which is a component of Sumatriptan and Naproxen Sodium Tablets. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Skin and Appendages: exfoliative dermatitis, Stevens-Johnson Syndrome (SJS), toxic epidermal necrolysis (TEN), and fixed drug eruption (FDE) [see Warnings and Precautions (5.14) ].

Mechanism of Action Sumatriptan and Naproxen Sodium Tablets contains sumatriptan and naproxen. Sumatriptan binds with high affinity to cloned 5-HT 1B / 1D receptors. Sumatriptan presumably exerts its therapeutic effects in the treatment of migraine headache through agonist effects at the 5-HT 1B/1D receptors on intracranial blood vessels and sensory nerves of the trigeminal system, which result in cranial vessel constriction and inhibition of neuropeptide release. Sumatriptan and Naproxen Sodium Tablets has analgesic, anti-inflammatory, and antipyretic properties. The mechanism of action of Sumatriptan and Naproxen Sodium Tablets, 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.