SUMATRIPTAN

1 INDICATIONS AND USAGE Sumatriptan Nasal Spray is indicated for the acute treatment of migraine with or without aura in adults. 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 Nasal Spray, reconsider the diagnosis of migraine before Sumatriptan Nasal Spray is administered to treat any subsequent attacks. • Sumatriptan is not indicated for the prevention of migraine attacks. • Safety and effectiveness of Sumatriptan Nasal Spray have not been established for cluster headache. Sumatriptan is a serotonin (5-HT 1B/1D ) receptor agonist (triptan) indicated for acute treatment of migraine with or without aura in adults. 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)

2 DOSAGE AND ADMINISTRATION The recommended adult dose of Sumatriptan Nasal Spray for the acute treatment of migraine is 5 mg, 10 mg, or 20 mg. The 20-mg dose may provide a greater effect than the 5-mg and 10-mg doses, but may have a greater risk of adverse reactions [see Clinical Studies (14) ] . The 5-mg and 20-mg doses are given as a single spray in 1 nostril. The 10-mg dose may be achieved by the administration of a single 5-mg dose in each nostril. If the migraine has not resolved by 2 hours after taking Sumatriptan Nasal Spray, or returns after a transient improvement, 1 additional dose may be administered at least 2 hours after the first dose. The maximum daily dose is 40 mg in a 24-hour period. The safety of treating an average of more than 4 headaches in a 30-day period has not been established. • Single dose of 5 mg, 10 mg, or 20 mg of nasal spray. (2) • A second dose should only be considered if some response to the first dose was observed. Separate doses by at least 2 hours. (2) • Maximum dose in a 24-hour period: 40 mg. (2)

5 WARNINGS AND PRECAUTIONS • Myocardial ischemia/infarction and Prinzmetal’s angina: Perform cardiac evaluation in patients with multiple cardiovascular risk factors. (5.1) • Arrhythmias: Discontinue Sumatriptan Nasal Spray if occurs. (5.2) • Chest/throat/neck/jaw pain, tightness, pressure, or heaviness: Generally not associated with myocardial ischemia; evaluate for coronary artery disease in patients at high risk. (5.3) • Cerebral hemorrhage, subarachnoid hemorrhage, and stroke: Discontinue Sumatriptan Nasal Spray if occurs. (5.4) • Gastrointestinal ischemic reactions and peripheral vasospastic reactions: Discontinue Sumatriptan Nasal Spray if occurs. (5.5) • Medication overuse headache: Detoxification may be necessary. (5.6) • Serotonin syndrome: Discontinue Sumatriptan Nasal Spray if occurs. (5.7) • Seizures: Use with caution in patients with epilepsy or a lowered seizure threshold. (5.11) 5.1 Myocardial Ischemia, Myocardial Infarction, and Prinzmetal’s Angina The use of Sumatriptan Nasal Spray is contraindicated in patients with ischemic or vasospastic CAD. There have been rare reports of serious cardiac adverse reactions, including acute myocardial infarction, occurring within a few hours following administration of Sumatriptan Nasal Spray. Some of these reactions occurred in patients without known CAD. Sumatriptan Nasal Spray may cause coronary artery vasospasm (Prinzmetal’s angina), even in patients without a history of CAD. Perform a cardiovascular evaluation in triptan-naive patients who have multiple cardiovascular risk factors (e.g., increased age, diabetes, hypertension, smoking, obesity, strong family history of CAD) prior to receiving Sumatriptan Nasal Spray. If there is evidence of CAD or coronary artery vasospasm, Sumatriptan Nasal Spray is contraindicated. For patients with multiple cardiovascular risk factors who have a negative cardiovascular evaluation, consider administering the first dose of Sumatriptan Nasal Spray in a medically supervised setting and performing an electrocardiogram (ECG) immediately following administration of Sumatriptan Nasal Spray. For such patients, consider periodic cardiovascular evaluation in intermittent long-term users of Sumatriptan Nasal Spray. 5.2 Arrhythmias Life-threatening disturbances of cardiac rhythm, including ventricular tachycardia and ventricular fibrillation leading to death, have been reported within a few hours following the administration of 5-HT 1 agonists. Discontinue Sumatriptan Nasal Spray if these disturbances occur. Sumatriptan Nasal Spray is contraindicated in patients with Wolff-Parkinson-White syndrome or arrhythmias associated with other cardiac accessory conduction pathway disorders. 5.3 Chest, Throat, Neck, and/or Jaw Pain/Tightness/Pressure Sensations of tightness, pain, pressure, and heaviness in the precordium, throat, neck, and jaw may occur after treatment with Sumatriptan Nasal Spray and are usually non-cardiac in origin. However, perform a cardiac evaluation if these patients are at high cardiac risk. The use of Sumatriptan Nasal Spray is contraindicated in patients with CAD and those with Prinzmetal’s variant angina. 5.4 Cerebrovascular Events Cerebral hemorrhage, subarachnoid hemorrhage, and stroke have occurred in patients treated with 5-HT 1 agonists, and some have resulted in fatalities. In a number of cases, it appears possible that the cerebrovascular events were primary, the 5-HT 1 agonist having been administered in the incorrect belief that the symptoms experienced were a consequence of migraine when they were not. Also, patients with migraine may be at increased risk of certain cerebrovascular events (e.g., stroke, hemorrhage, TIA). Discontinue Sumatriptan Nasal Spray if a cerebrovascular event occurs. Before treating headaches in patients not previously diagnosed as migraineurs, and in migraineurs who present with atypical symptoms, exclude other potentially serious neurological conditions. Sumatriptan Nasal Spray is contraindica…

4 CONTRAINDICATIONS Sumatriptan Nasal Spray is contraindicated in patients with: • 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) ] • Wolff-Parkinson-White syndrome or arrhythmias associated with other cardiac accessory conduction pathway disorders [see Warnings and Precautions (5.2) ] • History of stroke, transient ischemic attack (TIA), or history of hemiplegic or basilar migraine because these patients are at a higher risk of stroke [see Warnings and Precautions (5.4) ] • Peripheral vascular disease [see Warnings and Precautions (5.5) ] • Ischemic bowel disease [see Warnings and Precautions (5.5) ] • 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 ( 7.1 , 7.3 )] • Concurrent administration of a monoamine oxidase (MAO)-A inhibitor or recent (within 2 weeks) use of an MAO-A inhibitor [see Drug Interactions (7.2) , Clinical Pharmacology (12.3) ] • Hypersensitivity to sumatriptan (angioedema and anaphylaxis seen) [see Warnings and Precautions (5.10) ] • Severe hepatic impairment [see Clinical Pharmacology (12.3) ] • History of coronary artery disease or coronary artery vasospasm (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 an ergotamine-containing medication. (4) • Concurrent or recent (past 2 weeks) use of monoamine oxidase-A inhibitor. (4) • Hypersensitivity to sumatriptan (angioedema and anaphylaxis seen). (4) • Severe hepatic impairment (4)

7 DRUG INTERACTIONS 7.1 Ergot-Containing Drugs Ergot-containing drugs have been reported to cause prolonged vasospastic reactions. Because these effects may be additive, use of ergotamine-containing or ergot-type medications (like dihydroergotamine or methysergide) and Sumatriptan Nasal Spray within 24 hours of each other is contraindicated. 7.2 Monoamine Oxidase-A Inhibitors MAO-A inhibitors increase systemic exposure by up to 7-fold. Therefore, the use of Sumatriptan Nasal Spray in patients receiving MAO-A inhibitors is contraindicated [see Clinical Pharmacology (12.3) ] . 7.3 Other 5-HT 1 Agonists Because their vasospastic effects may be additive, coadministration of Sumatriptan Nasal Spray and other 5-HT 1 agonists (e.g., triptans) within 24 hours of each other is contraindicated. 7.4 Selective Serotonin Reuptake Inhibitors/Serotonin Norepinephrine Reuptake Inhibitors and Serotonin Syndrome Cases of serotonin syndrome have been reported during coadministration of triptans and SSRIs, SNRIs, TCAs, and MAO inhibitors [see Warnings and Precautions (5.7) ] .

8.1 Pregnancy Risk Summary 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 Data) . In developmental toxicity studies in rats and rabbits, oral administration of sumatriptan to pregnant animals was associated with embryolethality, fetal abnormalities, and pup mortality. When administered by the intravenous route to pregnant rabbits, sumatriptan was embryolethal (see Data) . In the U.S. general population, the estimated background risk of major birth defects and of miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. The reported rate of major birth defects among deliveries to women with migraine ranged from 2.2% to 2.9% and the reported rate of miscarriage was 17%, which were similar to rates reported in women without migraine. Clinical Considerations Disease-Associated Maternal and/or Embryo/Fetal Risk: Several studies have suggested that women with migraine may be at increased risk of preeclampsia during pregnancy. Data Human Data: The Sumatriptan/Naratriptan/Treximet (sumatriptan and naproxen sodium) Pregnancy Registry, a population-based international prospective study, collected data for sumatriptan from January 1996 to September 2012. The Registry documented outcomes of 626 infants and fetuses exposed to sumatriptan during pregnancy (528 with earliest exposure during the first trimester, 78 during the second trimester, 16 during the third trimester, and 4 unknown). The occurrence of major birth defects (excluding fetal deaths and induced abortions without reported defects and all spontaneous pregnancy losses) during first-trimester exposure to sumatriptan was 4.2% (20/478 [95% CI: 2.6% to 6.5%]) and during any trimester of exposure was 4.2% (24/576 [95% CI: 2.7% to 6.2%]). The sample size in this study had 80% power to detect at least a 1.73- to 1.91-fold increase in the rate of major malformations. The number of exposed pregnancy outcomes accumulated during the registry was insufficient to support definitive conclusions about overall malformation risk or for making comparisons of the frequencies of specific birth defects. Of the 20 infants with reported birth defects after exposure to sumatriptan in the first trimester, 4 infants had ventricular septal defects, including one infant who was exposed to both sumatriptan and naratriptan, and 3 infants had pyloric stenosis. No other birth defect was reported for more than 2 infants in this group. In a study using data from the Swedish Medical Birth Register, live births to women who reported using triptans or ergots during pregnancy were compared with those of women who did not. Of the 2,257 births with first-trimester exposure to sumatriptan, 107 infants were born with malformations (relative risk 0.99 [95% CI: 0.91 to 1.21]). A study using linked data from the Medical Birth Registry of Norway to the Norwegian Prescription Database compared pregnancy outcomes in women who redeemed prescriptions for triptans during pregnancy, as well as a migraine disease comparison group who redeemed prescriptions for sumatriptan before pregnancy only, compared with a population control group. Of the 415 women who redeemed prescriptions for sumatriptan during the first trimester, 15 had infants with major congenital malformations (OR 1.16 [95% CI: 0.69 to 1.94]) while for the 364 women who redeemed prescriptions for sumatriptan before, but not during, pregnancy, 20 had infants with major congenital malformations (OR 1.83 [95% CI: 1.17 to 2.88]), each compared with the population comparison group. Additional smaller observational studies evaluating use of sumatriptan during pregnancy have not suggested an increased risk of teratogenicity. Animal Data: Oral administration of sumatriptan to pregnant rats during the period of organogene…

6 ADVERSE REACTIONS The following adverse reactions are discussed in more detail in other sections of the prescribing information: • Myocardial ischemia, myocardial infarction, and Prinzmetal’s angina [see Warnings and Precautions (5.1) ] • Arrhythmias [see Warnings and Precautions (5.2) ] • Chest, throat, neck, and/or jaw pain/tightness/pressure [see Warnings and Precautions (5.3) ] • Cerebrovascular events [see Warnings and Precautions (5.4) ] • Other vasospasm reactions [see Warnings and Precautions (5.5) ] • Medication overuse headache [see Warnings and Precautions (5.6) ] • Serotonin syndrome [see Warnings and Precautions (5.7) ] • Increase in blood pressure [see Warnings and Precautions (5.8) ] • Local irritation [see Warnings and Precautions (5.9) ] • Hypersensitivity reactions [see Contraindications (4) , Warnings and Precautions (5.10) ] • Seizures [see Warnings and Precautions (5.11) ] Most common adverse reactions (≥1% and >placebo) were burning sensation, disorder/discomfort of nasal cavity/sinuses, throat discomfort, nausea and/or vomiting, bad/unusual taste, and dizziness/vertigo. (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Perrigo at 1-866-634-9120 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. Table 1 lists adverse reactions that occurred in worldwide placebo-controlled clinical trials in 3,419 patients with migraine. Only treatment-emergent adverse reactions that occurred at a frequency of 1% or more in the group treated with sumatriptan nasal spray 20 mg and that occurred at a frequency greater than the placebo group are included in Table 1. Table 1. Adverse Reactions Reported by at Least 1% of Patients and at a Greater Frequency than Placebo in Controlled Migraine Clinical Trials Adverse Reaction Percent of Patients Reporting Sumatriptan Nasal Spray 5 mg (n = 496) Sumatriptan Nasal Spray 10 mg (n = 1,007) Sumatriptan Nasal Spray 20 mg (n = 1,212) Placebo (n=704) Atypical sensations Burning sensation 0.4 0.6 1.4 0.1 Ear, nose, and throat Disorder/discomfort of nasal cavity/sinuses 2.8 2.5 3.8 2.4 Throat discomfort 0.8 1.8 2.4 0.9 Gastrointestinal Nausea and/or vomiting 12.2 11.0 13.5 11.3 Neurological Bad/unusual taste 13.5 19.3 24.5 1.7 Dizziness/vertigo 1.0 1.7 1.4 0.9 The incidence of adverse reactions in controlled clinical trials was not affected by gender, weight, or age of the patients; use of prophylactic medications; or presence of aura. There were insufficient data to assess the impact of race on the incidence of adverse reactions. 6.2 Postmarketing Experience The following adverse reactions have been identified during postapproval use of sumatriptan tablets, sumatriptan nasal spray, and sumatriptan injection. 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. These reactions have been chosen for inclusion due to either their seriousness, frequency of reporting, or causal connection to sumatriptan or a combination of these factors. Cardiovascular Hypotension, palpitations. Neurological Dystonia, tremor.