Sumatriptan and naproxen

Drugs that Interfere with Hemostasis (e.g. warfarin, aspirin, SSRIs/SNRIs): Monitor patients for bleeding who are concomitantly taking Sumatriptan and Naproxen Sodium Tablets with drugs that interfere with hemostasis. Concomitant use of Sumatriptan and Naproxen Sodium Tablets and analgesic doses of aspirin is not generally recommended. ( 7.1 ) ACE Inhibitors and ARBs: Concomitant use with Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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 Sumatriptan and Naproxen Sodium Tablets 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, salsalate) increases the risk of GI toxicity, with little or no increase in efficacy [see Warnings and Precautions (5.2) ]. Intervention: The concomitant use of naproxen with other NSAIDs or salicylates is not recommended.

Pemetrexed Clinical Impact: Concomitant use of NSAIDs and pemetrexed may increase the risk of pemetrexed-associated myelosuppression, renal, and GI toxicity (see the pemetrexed prescribing information). Intervention: During concomitant use…

8.1 Pregnancy Risk Summary Use of NSAIDs, including Sumatriptan and Naproxen Sodium Tablets, can cause premature closure of the fetal ductus arteriosus and fetal renal dysfunction leading to oligohydramnios and, in some cases, neonatal renal impairment. Because of these risks, limit dose and duration of Sumatriptan and Naproxen Sodium Tablets use between about 20 and 30 weeks of gestation, and avoid Sumatriptan and Naproxen Sodium Tablets use at about 30 weeks of gestation and later in pregnancy ( see Clinical Considerations , Data ).

Premature Closure of Fetal Ductus Arteriosus Use of NSAIDs, including Sumatriptan and Naproxen Sodium Tablets, at about 30 weeks gestation or later in pregnancy increases the risk of premature closure of the fetal ductus arteriosus. Oligohydramnios/Neonatal Renal Impairment Use of NSAIDs at about 20 weeks gestation or later in pregnancy has been associated with cases of fetal renal dysfunction leading to oligohydramnios, and in some cases, neonatal renal impairment. Data from observational studies regarding other potential embryofetal risks of NSAID use in women in the first or second trimesters of pregnancy are inconclusive.

Data from a prospective pregnancy exposure registry and epidemiological studies of pregnant women have not detected an increased frequency of birth defects or a consistent pattern of birth defects among women exposed to sumatriptan compared with the general population ( see Human Data ). In animal studies, administration of sumatriptan and naproxen, alone or in combination, during pregnancy resulted in developmental toxicity (increased incidences of fetal malformations, embryofetal and pup mortality, decreased embryofetal growth) at clinically relevant doses ( see Animal 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 naproxen sodium resulted in increased pre- and post-implantation loss. Prostaglandins also have been shown to have an important role in fetal kidney development. In published animal studies, prostaglandin synthesis inhibitors have been reported to impair kidney development when administered at clinically relevant doses. All pregnancies have a background risk of birth defects, loss, or other adverse outcomes. In the U.S.

general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively. The…