Levetiracetam in Sodium Chloride

5 WARNINGS AND PRECAUTIONS Psychiatric Reactions: Behavioral abnormalities including psychotic symptoms, suicidal ideation, irritability, and aggressive behavior have been observed. Monitor patients for psychiatric signs and symptoms ( 5.1 ) Somnolence and Fatigue: Monitor patients for these symptoms and advise patients not to drive or operate machinery until they have gained sufficient experience on levetiracetam ( 5.2 ) Serious Dermatological Reactions: Discontinue Levetiracetam at the first sign of rash unless clearly not drug related. ( 5.4 ) Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)/Multiorgan Hypersensitivity: Discontinue if no alternative etiology ( 5.5 ) Coordination Difficulties: Monitor for ataxia, abnormal gait, and incoordination. ( 5. 6) Withdrawal Seizures: Levetiracetam must be gradually withdrawn ( 5. 7) 5.1 Psychiatric Reactions In some patients levetiracetam causes behavioral abnormalities. The incidences of behavioral abnormalities in the myoclonic and primary generalized tonic-clonic seizure studies were comparable to those of the adult partial-onset seizure studies. A total of 13.3% of adult levetiracetam-treated patients compared to 6.2% of placebo patients experienced non-psychotic behavioral symptoms (reported as aggression, agitation, anger, anxiety, apathy, depersonalization, depression, emotional lability, hostility, irritability, and nervousness). A total of 1.7% of adult levetiracetam-treated patients discontinued treatment due to behavioral adverse events, compared to 0.2% of placebo patients. The treatment dose was reduced in 0.8% of adult levetiracetam-treated patients and in 0.5% of placebo patients. One percent of adult levetiracetam-treated patients experienced psychotic symptoms compared to 0.2% of placebo patients. Two (0.3%) adult levetiracetam-treated patients were hospitalized and their treatment was discontinued due to psychosis. Both events, reported as psychosis, developed within the first week of treatment and resolved within 1 to 2 weeks following treatment discontinuation. The above psychiatric signs and symptoms should be monitored. 5.2 Somnolence and Fatigue In some patients, levetiracetam causes somnolence and fatigue. The incidences of somnolence and fatigue provided below are from controlled adult partial-onset seizure studies. In general, the incidences of somnolence and fatigue in the myoclonic and primary generalized tonic-clonic studies were comparable to those of the adult partial-onset seizure studies. In controlled trials of adult patients with epilepsy experiencing partial-onset seizures, 14.8% of levetiracetam-treated patients reported somnolence, compared to 8.4% of placebo patients. There was no clear dose response up to 3,000 mg/day. In a study where there was no titration, about 45% of patients receiving 4,000 mg/day reported somnolence. The somnolence was considered serious in 0.3% of the treated patients, compared to 0% in the placebo group. About 3% of levetiracetam-treated patients discontinued treatment due to somnolence, compared to 0.7% of placebo patients. In 1.4% of treated patients and in 0.9% of placebo patients the dose was reduced, while 0.3% of the treated patients were hospitalized due to somnolence. In controlled trials of adult patients with epilepsy experiencing partial-onset seizures, 14.7% of levetiracetam-treated patients reported asthenia, compared to 9.1% of placebo patients. Treatment was discontinued due to asthenia in 0.8% of treated patients as compared to 0.5% of placebo patients. In 0.5% of treated patients and in 0.2% of placebo patients the dose was reduced due to asthenia. Somnolence and asthenia occurred most frequently within the first 4 weeks of treatment. Patients should be monitored for these signs and symptoms and advised not to drive or operate machinery until they have gained sufficient experience on levetiracetam to gauge whether it adversely affects their ability to drive or operate machinery. 5.3 Anaphylaxis and Angioedema Levetiracetam can cause anaphylaxis or angioedema after the first dose or at any time during treatment. Signs and symptoms in cases reported in the postmarketing setting with levetiracetam have included hypotension, hives, rash, respiratory distress, and swelling of the face, lip, mouth, eye, tongue, throat, and feet. In some reported cases, reactions were life-threatening and required emergency treatment. If a patient develops signs or symptoms of anaphylaxis or angioedema, levetiracetam should be discontinued and the patient should seek immediate medical attention. Levetiracetam should be discontinued permanently if a clear alternative etiology for the reaction cannot be established [see Contraindications ( 4 )] . 5.4 Serious Dermatological Reactions Serious dermatological reactions, including Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), have been reported in patients treated with levetiracetam. The median time of onset is reported to be 14 to 17 days, but cases have been reported at least four months after initiation of treatment. Recurrence of the serious skin reactions following rechallenge with levetiracetam has also been reported. Levetiracetam should be discontinued at the first sign of a rash, unless the rash is clearly not drug-related. If signs or symptoms suggest SJS/TEN, use of this drug should not be resumed and alternative therapy should be considered. 5.5 Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)/Multiorgan Hypersensitivity Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS), also known as multiorgan hypersensitivity, has been reported in patients taking antiepileptic drugs, including levetiracetam. These events can be fatal or life-threatening, particularly if diagnosis and treatment do not occur as early as possible. DRESS typically, although not exclusively, presents with fever, rash, lymphadenopathy, and/or facial swelling, in association with other organ system involvement, such as hepatitis, nephritis, hematological abnormalities, myocarditis, or myositis, sometimes resembling an acute viral infection. Eosinophilia is often present. Because this disorder is variable in its expression, other organ systems not noted here may be involved. It is important to note that early manifestations of hypersensitivity, such as fever or lymphadenopathy, may be present even though rash is not evident. If such signs or symptoms are present, the patient should be evaluated immediately. Levetiracetam should be discontinued if an alternative etiology for the signs or symptoms cannot be established [ see Contraindications (4) ] 5.6 Coordination Difficulties Coordination difficulties were only observed in the adult partial-onset seizure studies. A total of 3.4% of adult levetiracetam-treated patients experienced coordination difficulties, (reported as either ataxia, abnormal gait, or incoordination) compared to 1.6% of placebo patients. A total of 0.4% of patients in controlled trials discontinued levetiracetam treatment due to ataxia, compared to 0% of placebo patients. In 0.7% of treated patients and in 0.2% of placebo patients the dose was reduced due to coordination difficulties, while one of the treated patients was hospitalized due to worsening of pre-existing ataxia. These events occurred most frequently within the first 4 weeks of treatment. Patients should be monitored for these signs and symptoms and advised not to drive or operate machinery until they have gained sufficient experience on levetiracetam to gauge whether it adversely affects their ability to drive or operate machinery. 5.7 Withdrawal Seizures As with most antiepileptic drugs, levetiracetam should be withdrawn gradually because of the risk of increased seizure frequency and status epilepticus. But if withdrawal is needed because of a serious adverse reaction, rapid discontinuation can be considered. 5.8 Hematologic Abnormalities Levetiracetam can cause hematologic abnormalities. Hematologic abnormalities occurred in clinical trials and included decreases in white blood cell (WBC), neutrophil, and red blood cells counts (RBC); decreases in hemoglobin and hematocrit; and increases in eosinophil counts. Cases of agranulocytosis, pancytopenia, and thrombocytopenia have been reported in the postmarketing setting. A complete blood count is recommended in patients experiencing significant weakness, pyrexia, recurrent infections, or coagulation disorders. Partial-Onset Seizures In controlled clinical studies using an oral formulation of levetiracetam in adult patients with partial-onset seizures, minor but statistically significant decreases compared to placebo in total mean RBC (0.03 × 10 6 /mm 3 ), mean hemoglobin (0.09 g/dL), and mean hematocrit (0.38%), were seen in levetiracetam-treated patients. A total of 3.2% of levetiracetam-treated and 1.8% of placebo-treated patients had at least one possibly significant (≤2.8 × 10 9 /L) decreased WBC, and 2.4% of levetiracetam-treated and 1.4% of placebo-treated patients had at least one possibly significant (≤1 × 10 9 /L) decreased neutrophil count. Of the levetiracetam-treated patients with a low neutrophil count, all but one rose towards or to baseline with continued treatment. No patient was discontinued secondary to low neutrophil counts. Juvenile Myoclonic Epilepsy Although there were no obvious hematologic abnormalities observed in patients with JME, the limited number of patients makes any conclusion tentative. The data from the partial seizure patients should be considered to be relevant for JME patients. 5.9 Seizure Control During Pregnancy Physiological changes may gradually decrease plasma levels of levetiracetam throughout pregnancy. This decrease is more pronounced during the third trimester. It is recommended that patients be monitored carefully during pregnancy. Close monitoring should continue through the postpartum period especially if the dose was changed during pregnancy.

5.1 Psychiatric Reactions In some patients levetiracetam causes behavioral abnormalities. The incidences of behavioral abnormalities in the myoclonic and primary generalized tonic-clonic seizure studies were comparable to those of the adult partial-onset seizure studies. A total of 13.3% of adult levetiracetam-treated patients compared to 6.2% of placebo patients experienced non-psychotic behavioral symptoms (reported as aggression, agitation, anger, anxiety, apathy, depersonalization, depression, emotional lability, hostility, irritability, and nervousness). A total of 1.7% of adult levetiracetam-treated patients discontinued treatment due to behavioral adverse events, compared to 0.2% of placebo patients. The treatment dose was reduced in 0.8% of adult levetiracetam-treated patients and in 0.5% of placebo patients. One percent of adult levetiracetam-treated patients experienced psychotic symptoms compared to 0.2% of placebo patients. Two (0.3%) adult levetiracetam-treated patients were hospitalized and their treatment was discontinued due to psychosis. Both events, reported as psychosis, developed within the first week of treatment and resolved within 1 to 2 weeks following treatment discontinuation. The above psychiatric signs and symptoms should be monitored.

5.2 Somnolence and Fatigue In some patients, levetiracetam causes somnolence and fatigue. The incidences of somnolence and fatigue provided below are from controlled adult partial-onset seizure studies. In general, the incidences of somnolence and fatigue in the myoclonic and primary generalized tonic-clonic studies were comparable to those of the adult partial-onset seizure studies. In controlled trials of adult patients with epilepsy experiencing partial-onset seizures, 14.8% of levetiracetam-treated patients reported somnolence, compared to 8.4% of placebo patients. There was no clear dose response up to 3,000 mg/day. In a study where there was no titration, about 45% of patients receiving 4,000 mg/day reported somnolence. The somnolence was considered serious in 0.3% of the treated patients, compared to 0% in the placebo group. About 3% of levetiracetam-treated patients discontinued treatment due to somnolence, compared to 0.7% of placebo patients. In 1.4% of treated patients and in 0.9% of placebo patients the dose was reduced, while 0.3% of the treated patients were hospitalized due to somnolence. In controlled trials of adult patients with epilepsy experiencing partial-onset seizures, 14.7% of levetiracetam-treated patients reported asthenia, compared to 9.1% of placebo patients. Treatment was discontinued due to asthenia in 0.8% of treated patients as compared to 0.5% of placebo patients. In 0.5% of treated patients and in 0.2% of placebo patients the dose was reduced due to asthenia. Somnolence and asthenia occurred most frequently within the first 4 weeks of treatment. Patients should be monitored for these signs and symptoms and advised not to drive or operate machinery until they have gained sufficient experience on levetiracetam to gauge whether it adversely affects their ability to drive or operate machinery.

5.3 Anaphylaxis and Angioedema Levetiracetam can cause anaphylaxis or angioedema after the first dose or at any time during treatment. Signs and symptoms in cases reported in the postmarketing setting with levetiracetam have included hypotension, hives, rash, respiratory distress, and swelling of the face, lip, mouth, eye, tongue, throat, and feet. In some reported cases, reactions were life-threatening and required emergency treatment. If a patient develops signs or symptoms of anaphylaxis or angioedema, levetiracetam should be discontinued and the patient should seek immediate medical attention. Levetiracetam should be discontinued permanently if a clear alternative etiology for the reaction cannot be established [see Contraindications ( 4 )] .

6 ADVERSE REACTIONS The following serious adverse reactions are discussed in more details in other sections of labeling: Psychiatric Reactions [see Warnings and Precautions ( 5.1 )] Somnolence and Fatigue [see Warnings and Precautions ( 5.2 )] Anaphylaxis and Angioedema [see Warnings and Precautions ( 5.3 )] Serious Dermatological Reactions [see Warnings and Precautions ( 5.4 )] Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)/Multiorgan Hypersensitivity [see Warnings and Precautions ( 5.5 )] Coordination Difficulties [see Warnings and Precautions ( 5.6 ] Withdrawal Seizures [see Warnings and Precautions ( 5.7 )] Hematologic Abnormalities [see Warnings and Precautions ( 5.8 )] Seizure Control During Pregnancy [see Warnings and Precautions ( 5.9 )] Most common adverse reactions (incidence in levetiracetam-treated patients is ≥5% more than in placebo-treated patients) include: somnolence, asthenia, infection, and dizzines s (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Hikma Pharmaceuticals USA Inc. at 1-877-845-0689, 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 rates in the clinical trials of another drug and may not reflect the rates observed in practice. The adverse reactions that result from levetiracetam injection use include all of those reported for levetiracetam tablets and oral solution. Equivalent doses of intravenous (IV) levetiracetam and oral levetiracetam result in equivalent C max , C min , and total systemic exposure to levetiracetam when the IV levetiracetam is administered as a 15-minute infusion. Partial-Onset Seizures In controlled clinical studies using levetiracetam tablets in adults with partial-onset seizures [see Clinical Studies ( 14.1 )] , the most common adverse reactions in adult patients receiving levetiracetam in combination with other AEDs, for events with rates greater than placebo, were somnolence, asthenia, infection and dizziness. Of the most common adverse reactions in adults experiencing partial-onset seizures, asthenia, somnolence and dizziness occurred predominantly during the first 4 weeks of treatment with levetiracetam. Table 2 lists adverse reactions that occurred in at least 1% of adult epilepsy patients receiving levetiracetam tablets in placebo-controlled studies and were numerically more common than in patients treated with placebo. In these studies, either levetiracetam or placebo was added to concurrent AED therapy. Adverse reactions were usually mild to moderate in intensity. Table 2: Adverse Reactions* In Placebo-Controlled, Adjunctive Studies In Adults Experiencing Partial-Onset Seizures Adverse Reaction Levetiracetam (N=769) % Placebo (N=439) % Asthenia 15 9 Somnolence 15 8 Headache 14 13 Infection 13 8 Dizziness 9 4 Pain 7 6 Pharyngitis 6 4 Depression 4 2 Nervousness 4 2 Rhinitis 4 3 Anorexia 3 2 Ataxia 3 1 Vertigo 3 1 Amnesia 2 1 Anxiety 2 1 Cough Increased 2 1 Diplopia 2 1 Emotional Lability 2 0 Hostility 2 1 Paresthesia 2 1 Sinusitis 2 1 * Adverse reactions occurred in at least 1% of levetiracetam-treated patients and occurred more frequently than placebo-treated patients In controlled adult clinical studies using levetiracetam tablets, 15% of patients receiving levetiracetam and 12% receiving placebo either discontinued or had a dose reduction as a result of an adverse reaction. Table 3 lists the most common (>1%) adverse reactions that resulted in discontinuation or dose reduction and that occurred more frequently in levetiracetam-treated patients than in placebo-treated patients. Table 3: Adverse Reactions that Resulted in Discontinuation or Dose Reduction in Placebo- Controlled Studies in Adults Experiencing Partial-Onset Seizures Adverse Reaction Levetiracetam Placebo (N=769) (N=439) % % Somnolence 4 2 Dizziness 1 0 Myoclonic Seizures Although the pattern of adverse reactions in this study seems somewhat different from that seen in patients with partial seizures, this is likely due to the much smaller number of patients in this study compared to partial seizure studies. The adverse reaction pattern for patients with JME is expected to be essentially the same as for patients with partial seizures. In the controlled clinical study using levetiracetam tablets in patients with myoclonic seizures, the most common adverse reactions in patients using levetiracetam in combination with other AEDs, for events with rates greater than placebo, were somnolence, neck pain, and pharyngitis. Table 4 lists adverse reactions that occurred in at least 5% of juvenile myoclonic epilepsy patients experiencing myoclonic seizures treated with levetiracetam tablets and were numerically more common than in patients treated with placebo. In this study, either levetiracetam or placebo was added to concurrent AED therapy. Adverse reactions were usually mild to moderate in intensity. Table 4: Adverse Reactions* in a Placebo-Controlled, Adjunctive Study in Patients 12 Years of Age and Older with Myoclonic Seizures Adverse Reaction Levetiracetam (N=60) % Placebo (N=60) % Somnolence 12 2 Neck pain 8 2 Pharyngitis 7 0 Depression 5 2 Influenza 5 2 Vertigo 5 3 * Adverse reactions occurred in at least 5% of levetiracetam-treated patients and occurred more frequently than placebo-treated patients In the placebo-controlled study using levetiracetam tablets in patients with JME, 8% of patients receiving levetiracetam and 2% receiving placebo either discontinued or had a dose reduction as a result of an adverse reaction. The adverse reactions that led to discontinuation or dose reduction and that occurred more frequently in levetiracetam-treated patients than in placebo- treated patients are presented in Table 5. Table 5: Adverse Reactions that Resulted in Discontinuation or Dose Reduction in Patients with Juvenile Myoclonic Epilepsy Adverse Reaction Levetiracetam (N=60) % Placebo (N=60) % Anxiety 3 2 Depressed mood 2 0 Depression 2 0 Diplopia 2 0 Hypersomnia 2 0 Insomnia 2 0 Irritability 2 0 Nervousness 2 0 Somnolence 2 0 Primary Generalized Tonic-Clonic Seizures Although the pattern of adverse reactions in this study seems somewhat different from that seen in patients with partial seizures, this is likely due to the much smaller number of patients in this study compared to partial seizure studies. The adverse reaction pattern for patients with primary generalized tonic-clonic (PGTC) seizures is expected to be essentially the same as for patients with partial seizures. In the controlled clinical study that included patients with PGTC seizures, the most common adverse reaction in patients receiving levetiracetam oral formulation in combination with other AEDs, for events with rates greater than placebo was nasopharyngitis. Table 6 lists adverse reactions that occurred in at least 5% of idiopathic generalized epilepsy patients experiencing PGTC seizures treated with levetiracetam and were numerically more common than in patients treated with placebo. In this study, either levetiracetam or placebo was added to concurrent AED therapy. Table 6: Adverse Reactions* in a Placebo-Controlled, Adjunctive Study in Patients with PGTC Seizures Adverse Reaction Levetiracetam (N=79) % Placebo (N=84) % Nasopharyngitis 14 5 Fatigue 10 8 Diarrhea 8 7 Irritability 6 2 Mood swings 5 1 * Adverse reactions occurred in at least 5% of levetiracetam-treated patients and occurred more frequently than placebo-treated patients In the placebo-controlled study, 5% of patients receiving levetiracetam and 8% receiving placebo either discontinued or had a dose reduction during the treatment period as a result of an adverse reaction. This study was too small to adequately characterize the adverse reactions that could be expected to result in discontinuation of treatment in this population. It is expected that the adverse reactions that would lead to discontinuation in this population would be similar to those resulting in discontinuation in other epilepsy trials (see Tables 3 and 5). In addition, the following adverse reactions were seen in other controlled adult studies of levetiracetam: balance disorder, disturbance in attention, eczema, memory impairment, myalgia, and blurred vision. Comparison of Gender, Age and Race The overall adverse reaction profile of levetiracetam was similar between females and males. There are insufficient data to support a statement regarding the distribution of adverse reactions by age and race. 6.2 Postmarketing Experience The following adverse reactions have been identified during post-approval use of levetiracetam. 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. In addition to the adverse reactions listed above [see Adverse Reactions ( 6.1 ) ], the following adverse reactions have been reported in patients receiving marketed levetiracetam worldwide. The listing is alphabetized: abnormal liver function test, acute kidney injury, anaphylaxis, angioedema, choreoathetosis, drug reaction with eosinophilia and systemic symptoms (DRESS), dyskinesia, erythema multiforme, hepatic failure, hepatitis, hyponatremia, muscular weakness, obsessive-compulsive disorder (OCD), pancreatitis, pancytopenia (with bone marrow suppression identified in some of these cases), panic attack, thrombocytopenia, weight loss, and worsening of seizures including in patients with SCN8A mutations. Alopecia has been reported with levetiracetam use; recovery was observed in majority of cases where levetiracetam was discontinued.

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 rates in the clinical trials of another drug and may not reflect the rates observed in practice. The adverse reactions that result from levetiracetam injection use include all of those reported for levetiracetam tablets and oral solution. Equivalent doses of intravenous (IV) levetiracetam and oral levetiracetam result in equivalent C max , C min , and total systemic exposure to levetiracetam when the IV levetiracetam is administered as a 15-minute infusion. Partial-Onset Seizures In controlled clinical studies using levetiracetam tablets in adults with partial-onset seizures [see Clinical Studies ( 14.1 )] , the most common adverse reactions in adult patients receiving levetiracetam in combination with other AEDs, for events with rates greater than placebo, were somnolence, asthenia, infection and dizziness. Of the most common adverse reactions in adults experiencing partial-onset seizures, asthenia, somnolence and dizziness occurred predominantly during the first 4 weeks of treatment with levetiracetam. Table 2 lists adverse reactions that occurred in at least 1% of adult epilepsy patients receiving levetiracetam tablets in placebo-controlled studies and were numerically more common than in patients treated with placebo. In these studies, either levetiracetam or placebo was added to concurrent AED therapy. Adverse reactions were usually mild to moderate in intensity. Table 2: Adverse Reactions* In Placebo-Controlled, Adjunctive Studies In Adults Experiencing Partial-Onset Seizures Adverse Reaction Levetiracetam (N=769) % Placebo (N=439) % Asthenia 15 9 Somnolence 15 8 Headache 14 13 Infection 13 8 Dizziness 9 4 Pain 7 6 Pharyngitis 6 4 Depression 4 2 Nervousness 4 2 Rhinitis 4 3 Anorexia 3 2 Ataxia 3 1 Vertigo 3 1 Amnesia 2 1 Anxiety 2 1 Cough Increased 2 1 Diplopia 2 1 Emotional Lability 2 0 Hostility 2 1 Paresthesia 2 1 Sinusitis 2 1 * Adverse reactions occurred in at least 1% of levetiracetam-treated patients and occurred more frequently than placebo-treated patients In controlled adult clinical studies using levetiracetam tablets, 15% of patients receiving levetiracetam and 12% receiving placebo either discontinued or had a dose reduction as a result of an adverse reaction. Table 3 lists the most common (>1%) adverse reactions that resulted in discontinuation or dose reduction and that occurred more frequently in levetiracetam-treated patients than in placebo-treated patients. Table 3: Adverse Reactions that Resulted in Discontinuation or Dose Reduction in Placebo- Controlled Studies in Adults Experiencing Partial-Onset Seizures Adverse Reaction Levetiracetam Placebo (N=769) (N=439) % % Somnolence 4 2 Dizziness 1 0 Myoclonic Seizures Although the pattern of adverse reactions in this study seems somewhat different from that seen in patients with partial seizures, this is likely due to the much smaller number of patients in this study compared to partial seizure studies. The adverse reaction pattern for patients with JME is expected to be essentially the same as for patients with partial seizures. In the controlled clinical study using levetiracetam tablets in patients with myoclonic seizures, the most common adverse reactions in patients using levetiracetam in combination with other AEDs, for events with rates greater than placebo, were somnolence, neck pain, and pharyngitis. Table 4 lists adverse reactions that occurred in at least 5% of juvenile myoclonic epilepsy patients experiencing myoclonic seizures treated with levetiracetam tablets and were numerically more common than in patients treated with placebo. In this study, either levetiracetam or placebo was added to concurrent AED therapy. Adverse reactions were usually mild to moderate in intensity. Table 4: Adverse Reactions* in a Placebo-Controlled, Adjunctive Study in Patients 12 Years of Age and Older with Myoclonic Seizures Adverse Reaction Levetiracetam (N=60) % Placebo (N=60) % Somnolence 12 2 Neck pain 8 2 Pharyngitis 7 0 Depression 5 2 Influenza 5 2 Vertigo 5 3 * Adverse reactions occurred in at least 5% of levetiracetam-treated patients and occurred more frequently than placebo-treated patients In the placebo-controlled study using levetiracetam tablets in patients with JME, 8% of patients receiving levetiracetam and 2% receiving placebo either discontinued or had a dose reduction as a result of an adverse reaction. The adverse reactions that led to discontinuation or dose reduction and that occurred more frequently in levetiracetam-treated patients than in placebo- treated patients are presented in Table 5. Table 5: Adverse Reactions that Resulted in Discontinuation or Dose Reduction in Patients with Juvenile Myoclonic Epilepsy Adverse Reaction Levetiracetam (N=60) % Placebo (N=60) % Anxiety 3 2 Depressed mood 2 0 Depression 2 0 Diplopia 2 0 Hypersomnia 2 0 Insomnia 2 0 Irritability 2 0 Nervousness 2 0 Somnolence 2 0 Primary Generalized Tonic-Clonic Seizures Although the pattern of adverse reactions in this study seems somewhat different from that seen in patients with partial seizures, this is likely due to the much smaller number of patients in this study compared to partial seizure studies. The adverse reaction pattern for patients with primary generalized tonic-clonic (PGTC) seizures is expected to be essentially the same as for patients with partial seizures. In the controlled clinical study that included patients with PGTC seizures, the most common adverse reaction in patients receiving levetiracetam oral formulation in combination with other AEDs, for events with rates greater than placebo was nasopharyngitis. Table 6 lists adverse reactions that occurred in at least 5% of idiopathic generalized epilepsy patients experiencing PGTC seizures treated with levetiracetam and were numerically more common than in patients treated with placebo. In this study, either levetiracetam or placebo was added to concurrent AED therapy. Table 6: Adverse Reactions* in a Placebo-Controlled, Adjunctive Study in Patients with PGTC Seizures Adverse Reaction Levetiracetam (N=79) % Placebo (N=84) % Nasopharyngitis 14 5 Fatigue 10 8 Diarrhea 8 7 Irritability 6 2 Mood swings 5 1 * Adverse reactions occurred in at least 5% of levetiracetam-treated patients and occurred more frequently than placebo-treated patients In the placebo-controlled study, 5% of patients receiving levetiracetam and 8% receiving placebo either discontinued or had a dose reduction during the treatment period as a result of an adverse reaction. This study was too small to adequately characterize the adverse reactions that could be expected to result in discontinuation of treatment in this population. It is expected that the adverse reactions that would lead to discontinuation in this population would be similar to those resulting in discontinuation in other epilepsy trials (see Tables 3 and 5). In addition, the following adverse reactions were seen in other controlled adult studies of levetiracetam: balance disorder, disturbance in attention, eczema, memory impairment, myalgia, and blurred vision. Comparison of Gender, Age and Race The overall adverse reaction profile of levetiracetam was similar between females and males. There are insufficient data to support a statement regarding the distribution of adverse reactions by age and race.

6.2 Postmarketing Experience The following adverse reactions have been identified during post-approval use of levetiracetam. 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. In addition to the adverse reactions listed above [see Adverse Reactions ( 6.1 ) ], the following adverse reactions have been reported in patients receiving marketed levetiracetam worldwide. The listing is alphabetized: abnormal liver function test, acute kidney injury, anaphylaxis, angioedema, choreoathetosis, drug reaction with eosinophilia and systemic symptoms (DRESS), dyskinesia, erythema multiforme, hepatic failure, hepatitis, hyponatremia, muscular weakness, obsessive-compulsive disorder (OCD), pancreatitis, pancytopenia (with bone marrow suppression identified in some of these cases), panic attack, thrombocytopenia, weight loss, and worsening of seizures including in patients with SCN8A mutations. Alopecia has been reported with levetiracetam use; recovery was observed in majority of cases where levetiracetam was discontinued.

<table cellspacing="0" cellpadding="0" border="0"><col width="148.6pt"/><col width="108.15pt"/><col width="90.05pt"/><tbody><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph><content styleCode="bold">Adverse Reaction</content></paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph><content styleCode="bold">Levetiracetam (N=769)</content></paragraph><paragraph><content styleCode="bold">%</content></paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph><content styleCode="bold">Placebo (N=439)</content></paragraph><paragraph><content styleCode="bold">%</content></paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Asthenia</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>15</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>9</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Somnolence</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>15</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>8</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Headache</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>14</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>13</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Infection</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>13</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>8</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Dizziness</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>9</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>4</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Pain</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>7</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>6</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Pharyngitis</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>6</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>4</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Depression</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>4</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>2</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Nervousness</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>4</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>2</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Rhinitis</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>4</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>3</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Anorexia</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>3</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>2</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Ataxia</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>3</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>1</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Vertigo</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>3</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>1</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Amnesia</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>2</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>1</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Anxiety</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>2</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>1</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Cough Increased</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>2</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>1</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Diplopia</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>2</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>1</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Emotional Lability</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>2</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>0</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Hostility</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>2</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>1</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Paresthesia</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>2</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>1</paragraph></td></tr><tr><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>Sinusitis</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>2</paragraph></td><td styleCode=" Botrule Toprule Lrule Rrule"><paragraph>1</paragraph></td></tr></tbody></table>