1 INDICATIONS AND USAGE ONZETRA ® Xsail ® is indicated for the acute treatment of migraine with or without aura in adults.

ONZETRA Xsail is a serotonin 5-HT 1B/1D receptor agonist (triptan) indicated for the acute treatment of migraine with or without aura in adults ( 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 has been established.

If a patient has no response to the first migraine attack treated with ONZETRA Xsail, reconsider the diagnosis of migraine before treatment of subsequent attacks with ONZETRA Xsail.

ONZETRA Xsail is not indicated for the prevention of migraine attacks.

Safety and effectiveness of ONZETRA Xsail have not been established for the treatment of cluster headache.

6 ADVERSE REACTIONS The following serious 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) ] Hypersensitivity reactions [see Contraindications (4) and Warnings and Precautions (5.9) ] Seizures [see Warnings and Precautions (5.10) ] In controlled studies with ONZETRA Xsail, the most common adverse reactions (incidence of ≥ 2% and greater than placebo) were abnormal taste, nasal discomfort, rhinorrhea, and rhinitis ( 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 to the 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 2 placebo-controlled clinical trials in 301 patients with migraine who took at least 1 dose of ONZETRA Xsail or placebo.

Only adverse reactions that occurred at a frequency of 2% or more with ONZETRA Xsail and that occurred at a frequency greater than the placebo group are included in Table 1.

Table 1: Adverse Reactions Reported by at Least 2% of Patients in 2 Controlled Migraine Trials Percent of Patients Reporting Adverse Reaction ONZETRA N=151 Placebo N=150 Abnormal Taste 20 3 Nasal Discomfort 11 Limited examinations of the nose and throat did not reveal any clinically noticeable injury in these patients.

1 Rhinorrhea 5 2 Rhinitis 2 0 There is insufficient data with ONZETRA Xsail to assess the impact of age, gender, and race on adverse effects.

6.2 Postmarketing Experience The following adverse reaction has been identified during post approval use of ONZETRA Xsail.

Because this reaction is reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate its frequency or establish a causal relationship to drug exposure.

Epistaxis has been identified during post approval use of ONZETRA Xsail as an adverse reaction.