Dextroamphetamine Saccharate and Amphetamine Aspartate and Dextroamphetamine Sulfate and Amphetamine Sulfate

Mixed Salts of a Single Entity Amphetamine Product are indicated for the treatment of Attention Deficit Hyperactivity Disorder (ADHD) and Narcolepsy. Attention Deficit Hyperactivity Disorder (ADHD) A diagnosis of Attention Deficit Hyperactivity Disorder (ADHD; DSM-IV ® ) implies the presence of hyperactive-impulsive or inattentive symptoms that caused impairment and were present before age 7 years. The symptoms must cause clinically significant impairment, e.g., in social, academic, or occupational functioning, and be present in two or more settings, e.g., school (or work) and at home. The symptoms must not be better accounted for by another mental disorder. For the Inattentive Type, at least six of the following symptoms must have persisted for at least 6 months: lack of attention to details/careless mistakes; lack of sustained attention; poor listener; failure to follow through on tasks; poor organization; avoids tasks requiring sustained mental effort; loses things; easily distracted; forgetful. For the Hyperactive-Impulsive Type, at least six of the following symptoms must have persisted for at least 6 months: fidgeting/squirming; leaving seat; inappropriate running/climbing; difficulty with quiet activities; “on the go;” excessive talking; blurting answers; can't wait turn; intrusive. The Combined Type requires both inattentive and hyperactive-impulsive criteria to be met.

In patients known to be hypersensitive to amphetamine, or other components of Mixed Salts of a Single Entity Amphetamine Product. Hypersensitivity reactions such as angioedema and anaphylactic reactions have been reported in patients treated with other amphetamine products ( see ADVERSE REACTIONS ). Patients taking monoamine oxidase inhibitors (MAOIs), or within 14 days of stopping MAOIs (including MAOIs such as linezolid or intravenous methylene blue), because of an increased risk of hypertensive crisis ( see WARNINGS and DRUG INTERACTIONS ) .

Abuse, Misuse, and Addiction Mixed Salts of a Single Entity Amphetamine Product has a high potential for abuse and misuse. The use of Mixed Salts of a Single Entity Amphetamine Product exposes individuals to the risks of abuse and misuse, which can lead to the development of a substance use disorder, including addiction. Mixed Salts of a Single Entity Amphetamine Product can be diverted for non-medical use into illicit channels or distribution ( see DRUG ABUSE AND DEPENDENCE, Abuse ). Misuse and abuse of CNS stimulants, including Mixed Salts of a Single Entity Amphetamine Product, can result in overdose and death ( see OVERDOSAGE ), and this risk is increased with higher doses or unapproved methods of administration, such as snorting or injection. Before prescribing Mixed Salts of a Single Entity Amphetamine Product, assess each patient’s risk for abuse, misuse, and addiction. Educate patients and their families about these risks and proper disposal of any unused drug. Advise patients to store amphetamine sulfate in a safe place, preferably locked, and instruct patients to not give Mixed Salts of a Single Entity Amphetamine Product to anyone else. Throughout Mixed Salts of a Single Entity Amphetamine Product treatment, reassess each patient’s risk of abuse, misuse, and addiction and frequently monitor for signs and symptoms of abuse, misuse, and addiction. Risks to Patients with Serious Cardiac Disease Sudden death has been reported in patients with structural cardiac abnormalities or other serious cardiac disease who were treated with CNS stimulant treatment at the recommended ADHD dosages. Avoid Mixed Salts of a Single Entity Amphetamine Product use in patients with known structural cardiac abnormalities, cardiomyopathy, serious cardiac arrhythmia, coronary artery disease, or other serious cardiac disease. Increased Blood Pressure and Heart Rate CNS stimulants cause an increase in blood pressure (mean increase about 2 to 4 mm Hg) and heart rate (mean increase about 3 to 6 bpm). Some patients may have larger increases. Monitor all Mixed Salts of a Single Entity Amphetamine Product-treated patients for potential tachycardia and hypertension. Psychiatric Adverse Reactions Exacerbation of Preexisting Psychosis CNS stimulants may exacerbate symptoms of behavior disturbance and thought disorder in patients with a preexisting psychotic disorder. Induction of a Manic Episode in Patients with Bipolar Disorder CNS stimulants may induce a manic or mixed episode in patients. Prior to initiating treatment, screen patients for risk factors for developing a manic episode (e.g., comorbid or history of depressive symptoms or a family history of suicide, bipolar disorder, or depression). New Psychotic or Manic Symptoms CNS stimulants, at recommended doses, may cause psychotic or manic symptoms (e.g., hallucinations, delusional thinking, or mania) in patients without a prior history of psychotic illness or mania. In a pooled analysis of multiple short-term, placebo-controlled studies of CNS stimulants, psychotic or manic symptoms occurred in approximately 0.1% of CNS stimulant-treated patients, compared with 0% of placebo-treated patients. If such symptoms occur, consider discontinuing Mixed Salts of a Single Entity Amphetamine Product. Long-Term Suppression of Growth in Pediatric Patients CNS stimulants have been associated with weight loss and slowing of growth rate in pediatric patients. Closely monitor growth (weight and height) in Mixed Salts of a Single Entity Amphetamine Product-treated pediatric patients treated with CNS stimulants. Pediatric patients who are not growing or gaining weight as expected may need to have their treatment interrupted ( see PRECAUTIONS , Pediatric Use ). Seizures There is some clinical evidence that stimulants may lower the convulsive threshold in patients with prior history of seizure, in patients with prior EEG abnormalities in absence of seizures, and very rarely, in patients without a history of seizures and no prior EEG evidence of seizures. In the presence of seizures, the drug should be discontinued. Peripheral Vasculopathy, Including Raynaud’s Phenomenon Stimulants, including Mixed Salts of a Single Entity Amphetamine Product, used to treat ADHD are associated with peripheral vasculopathy, including Raynaud’s phenomenon. Signs and symptoms are usually intermittent and mild; however, sequelae include digital ulceration and/or soft tissue breakdown. Effects of peripheral vasculopathy, including Raynaud’s phenomenon, were observed in postmarketing reports and at the therapeutic dosages of CNS stimulants in all age groups throughout the course of treatment. Signs and symptoms generally improved after dosage reduction or discontinuation of the CNS stimulant. Careful observation for digital changes is necessary during Mixed Salts of a Single Entity Amphetamine Product treatment. Further clinical evaluation (e.g., rheumatology referral) may be appropriate for Mixed Salts of a Single Entity Amphetamine Product-treated patients who develop signs or symptoms of peripheral vasculopathy. Serotonin Syndrome Serotonin syndrome, a potentially life-threatening reaction, may occur when amphetamines are used in combination with other drugs that affect the serotonergic neurotransmitter systems such as monoamine oxidase inhibitors (MAOIs), selective serotonin reuptake inhibitors (SSRIs), serotonin norepinephrine reuptake inhibitors (SNRIs), triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, buspirone, and St. John’s Wort ( see DRUG INTERACTIONS ). The coadministration with cytochrome P450 (CYP2D6) inhibitors increase the risk with increased exposure to Mixed Salts of a Single Entity Amphetamine Product. In these situations, consider an alternative non-serotonergic drug or an alternative drug that does not inhibit CYP2D6 ( see DRUG INTERACTIONS ). Serotonin syndrome symptoms may include mental status changes (e.g., agitation, hallucinations, delirium, and coma), autonomic instability (e.g., tachycardia, labile blood pressure, dizziness, diaphoresis, flushing, hyperthermia), neuromuscular symptoms (e.g., tremor, rigidity, myoclonus, hyperreflexia, incoordination), seizures, and/or gastrointestinal symptoms (e.g., nausea, vomiting, diarrhea). Concomitant use of Mixed Salts of a Single Entity Amphetamine Product with MAOI drugs is contraindicated ( see CONTRAINDICATIONS ). Discontinue treatment with Mixed Salts of a Single Entity Amphetamine Product and any concomitant serotonergic agents immediately if the above symptoms occur, and initiate supportive symptomatic treatment. If concomitant use of Mixed Salts of a Single Entity Amphetamine Product with other serotonergic drugs or CYP2D6 inhibitors is clinically warranted, initiate Mixed Salts of a Single Entity Amphetamine Product with lower doses, monitor patients for the emergence of serotonin syndrome during drug initiation or titration, and inform patients of the increased risk for serotonin syndrome. Motor and Verbal Tics, and Worsening of Tourette’s Syndrome CNS stimulants, including amphetamine sulfate, have been associated with the onset or exacerbation of motor and verbal tics. Worsening of Tourette’s syndrome has also been reported. Assess the family history and clinically evaluate patients for tics or Tourette’s syndrome before initiating Mixed Salts of a Single Entity Amphetamine Product. Regularly monitor patients for the emergence or worsening of tics or Tourette’s syndrome with Mixed Salts of a Single Entity Amphetamine Product, and discontinue treatment if clinically appropriate.

Information for Patients Advise the patient to read the FDA-approved patient labeling (Medication Guide). Abuse, Misuse, and Addiction Educate patients and their families about the risks of abuse, misuse, and addiction of Mixed Salts of a Single Entity Amphetamine Product, which can lead to overdose and death, and proper disposal of any unused drug ( see WARNINGS , DRUG ABUSE AND DEPENDENCE , OVERDOSAGE ). Advise patients to store Mixed Salts of a Single Entity Amphetamine Product in a safe place, preferably locked, and instruct patients to not give Mixed Salts of a Single Entity Amphetamine Product to anyone else. Risks to Patients with Serious Cardiac Disease Advise patients that there are potential risks to patients with serious cardiac disease, including sudden death, with Mixed Salts of a Single Entity Amphetamine Product use. Instruct patients to contact a healthcare provider immediately if they develop symptoms such as exertional chest pain, unexplained syncope, or other symptoms suggestive of cardiac disease ( see WARNINGS ). Increased Blood Pressure and Heart Rate Advise patients that Mixed Salts of a Single Entity Amphetamine Product can elevate blood pressure and heart rate ( see WARNINGS ). Psychiatric Adverse Reactions Advise patients that Mixed Salts of a Single Entity Amphetamine Product, at recommended doses, can cause psychotic or manic symptoms, even in patients without prior history of psychotic symptoms or mania ( see WARNINGS ). Long-Term Suppression of Growth in Pediatric Patients Advise patients that Mixed Salts of a Single Entity Amphetamine Product may cause slowing of growth including weight loss ( see WARNINGS ). Circulation Problems in Fingers and Toes [Peripheral Vasculopathy, Including Raynaud’s Phenomenon] Instruct patients beginning treatment with Mixed Salts of a Single Entity Amphetamine Product about the risk of peripheral vasculopathy, including Raynaud’s phenomenon, and associated signs and symptoms: fingers or toes may feel numb, cool, painful, and/or may change color from pale, to blue, to red. Instruct patients to report to their physician any new numbness, pain, skin color change, or sensitivity to temperature in fingers or toes. Instruct patients to call their physician immediately with any signs of unexplained wounds appearing on fingers or toes while taking Mixed Salts of a Single Entity Amphetamine Product. Further clinical evaluation (e.g., rheumatology referral) may be appropriate for certain patients. Serotonin Syndrome Caution patients about the risk of serotonin syndrome with concomitant use of Mixed Salts of a Single Entity Amphetamine Product and other serotonergic drugs including SSRIs, SNRIs, triptans, tricyclic antidepressants, fentanyl, lithium, tramadol, tryptophan, buspirone, St. John's Wort, and with drugs that impair metabolism of serotonin (in particular MAOIs, both those intended to treat psychiatric disorders and also others such as linezolid ( see CONTRAINDICATIONS , WARNINGS , and DRUG INTERACTIONS ). Advise patients to contact their healthcare provider or report to the emergency room if they experience signs or symptoms of serotonin syndrome. Motor and Verbal Tics, and Worsening of Tourette’s Syndrome Advise patients that motor and verbal tics and worsening of Tourette’s Syndrome may occur during treatment with Mixed Salts of a Single Entity Amphetamine Product. Instruct the patients to notify their healthcare provider if emergence or worsening of tics or Tourette’s syndrome occurs ( see WARNINGS ). Drug Interactions MAO Inhibitors Concomitant use of MAOIs and CNS stimulants can cause hypertensive crisis. Potential outcomes include death, stroke, myocardial infarction, aortic dissection, ophthalmological complications, eclampsia, pulmonary edema, and renal failure. Do not administer Mixed Salts of a Single Entity Amphetamine Product concomitantly or within 14 days after discontinuing MAOI ( see CONTRAINDICATIONS and WARNINGS ). Serotonergic Drugs The concomitant use of Mixed Salts of a Single Entity Amphetamine Product and serotonergic drugs increases the risk of serotonin syndrome. Initiate with lower doses and monitor patients for signs and symptoms of serotonin syndrome, particularly during Mixed Salts of a Single Entity Amphetamine Product initiation or dosage increase. If serotonin syndrome occurs, discontinue Mixed Salts of a Single Entity Amphetamine Product and the concomitant serotonergic drug(s) ( see WARNINGS and PRECAUTIONS ). CYP2D6 Inhibitors The concomitant use of Mixed Salts of a Single Entity Amphetamine Product and CYP2D6 inhibitors may increase the exposure of Mixed Salts of a Single Entity Amphetamine Product compared to the use of the drug alone and increase the risk of serotonin syndrome. Initiate with lower doses and monitor patients for signs and symptoms of serotonin syndrome particularly during Mixed Salts of a Single Entity Amphetamine Product initiation and after a dosage increase. If serotonin syndrome occurs, discontinue Mixed Salts of a Single Entity Amphetamine Product and the CYP2D6 inhibitor ( see WARNINGS and OVERDOSAGE ). Acidifying Agents Lower blood levels and efficacy of amphetamines. Increase dose based on clinical response. Examples of acidifying agents include gastrointestinal acidifying agents and urinary acidifying agents. Adrenergic Blockers Adrenergic blockers are inhibited by amphetamines. Alkalinizing Agents Increase blood levels and potentiate the action of amphetamine. Co-administration of Mixed Salts of a Single Entity Amphetamine Product and gastrointestinal alkalinizing agents should be avoided. Examples of alkalinizing agents include gastrointestinal alkalinizing agents and urinary alkalinizing agents. Tricyclic Antidepressants May enhance the activity of tricyclic or sympathomimetic agents causing striking and sustained increases in the concentration of d-amphetamine in the brain; cardiovascular effects can be potentiated. Monitor frequently and adjust or use alternative therapy based on clinical response. Antihistamines Amphetamines may counteract the sedative effect of antihistamines. Antihypertensives Amphetamines may antagonize the hypotensive effects of antihypertensives. Chlorpromazine Chlorpromazine blocks dopamine and norepinephrine receptors, thus inhibiting the central stimulant effects of amphetamines, and can be used to treat amphetamine poisoning. Ethosuximide Amphetamines may delay intestinal absorption of ethosuximide. Haloperidol Haloperidol blocks dopamine receptors, thus inhibiting the central stimulant effects of amphetamines. Lithium Carbonate The anorectic and stimulatory effects of amphetamines may be inhibited by lithium carbonate. Meperidine Amphetamines potentiate the analgesic effect of meperidine. Methenamine Therapy Urinary excretion of amphetamines is increased, and efficacy is reduced, by acidifying agents used in methenamine therapy. Norepinephrine Amphetamines enhance the adrenergic effect of norepinephrine. Phenobarbital Amphetamines may delay intestinal absorption of phenobarbital; coadministration of phenobarbital may produce a synergistic anticonvulsant action. Phenytoin Amphetamines may delay intestinal absorption of phenytoin; coadministration of phenytoin may produce a synergistic anticonvulsant action. Propoxyphene In cases of propoxyphene overdosage, amphetamine CNS stimulation is potentiated and fatal convulsions can occur. Proton Pump Inhibitors Time to maximum concentration (T max ) of amphetamine is decreased compared to when administered alone. Monitor patients for changes in clinical effect and adjust therapy based on clinical response. An example of a proton pump inhibitor is omeprazole. Veratrum Alkaloids Amphetamines inhibit the hypotensive effect of veratrum alkaloids. Drug/Laboratory Test Interactions Amphetamines can cause a significant elevation in plasma corticosteroid levels. This increase is greatest in the evening. […]

Cardiovascular Palpitations, tachycardia, elevation of blood pressure, sudden death, myocardial infarction. There have been isolated reports of cardiomyopathy associated with chronic amphetamine use. Central Nervous System Psychotic episodes at recommended doses, overstimulation, restlessness, irritability, euphoria, dyskinesia, dysphoria, depression, tremor, tics, aggression, anger, logorrhea, dermatillomania. Eye Disorders Vision blurred, mydriasis. Gastrointestinal Dryness of the mouth, unpleasant taste, diarrhea, constipation, intestinal ischemia, and other gastrointestinal disturbances. Anorexia and weight loss may occur as undesirable effects. Allergic Urticaria, rash, hypersensitivity reactions including angioedema and anaphylaxis. Serious skin rashes, including Stevens-Johnson syndrome and toxic epidermal necrolysis have been reported. Endocrine Impotence, changes in libido, frequent or prolonged erections. Skin Alopecia. Musculoskeletal Rhabdomyolysis.

MAO Inhibitors Concomitant use of MAOIs and CNS stimulants can cause hypertensive crisis. Potential outcomes include death, stroke, myocardial infarction, aortic dissection, ophthalmological complications, eclampsia, pulmonary edema, and renal failure. Do not administer Mixed Salts of a Single Entity Amphetamine Product concomitantly or within 14 days after discontinuing MAOI ( see CONTRAINDICATIONS and WARNINGS ). Serotonergic Drugs The concomitant use of Mixed Salts of a Single Entity Amphetamine Product and serotonergic drugs increases the risk of serotonin syndrome. Initiate with lower doses and monitor patients for signs and symptoms of serotonin syndrome, particularly during Mixed Salts of a Single Entity Amphetamine Product initiation or dosage increase. If serotonin syndrome occurs, discontinue Mixed Salts of a Single Entity Amphetamine Product and the concomitant serotonergic drug(s) ( see WARNINGS and PRECAUTIONS ). CYP2D6 Inhibitors The concomitant use of Mixed Salts of a Single Entity Amphetamine Product and CYP2D6 inhibitors may increase the exposure of Mixed Salts of a Single Entity Amphetamine Product compared to the use of the drug alone and increase the risk of serotonin syndrome. Initiate with lower doses and monitor patients for signs and symptoms of serotonin syndrome particularly during Mixed Salts of a Single Entity Amphetamine Product initiation and after a dosage increase. If serotonin syndrome occurs, discontinue Mixed Salts of a Single Entity Amphetamine Product and the CYP2D6 inhibitor ( see WARNINGS and OVERDOSAGE ). Acidifying Agents Lower blood levels and efficacy of amphetamines. Increase dose based on clinical response. Examples of acidifying agents include gastrointestinal acidifying agents and urinary acidifying agents. Adrenergic Blockers Adrenergic blockers are inhibited by amphetamines. Alkalinizing Agents Increase blood levels and potentiate the action of amphetamine. Co-administration of Mixed Salts of a Single Entity Amphetamine Product and gastrointestinal alkalinizing agents should be avoided. Examples of alkalinizing agents include gastrointestinal alkalinizing agents and urinary alkalinizing agents. Tricyclic Antidepressants May enhance the activity of tricyclic or sympathomimetic agents causing striking and sustained increases in the concentration of d-amphetamine in the brain; cardiovascular effects can be potentiated. Monitor frequently and adjust or use alternative therapy based on clinical response. Antihistamines Amphetamines may counteract the sedative effect of antihistamines. Antihypertensives Amphetamines may antagonize the hypotensive effects of antihypertensives. Chlorpromazine Chlorpromazine blocks dopamine and norepinephrine receptors, thus inhibiting the central stimulant effects of amphetamines, and can be used to treat amphetamine poisoning. Ethosuximide Amphetamines may delay intestinal absorption of ethosuximide. Haloperidol Haloperidol blocks dopamine receptors, thus inhibiting the central stimulant effects of amphetamines. Lithium Carbonate The anorectic and stimulatory effects of amphetamines may be inhibited by lithium carbonate. Meperidine Amphetamines potentiate the analgesic effect of meperidine. Methenamine Therapy Urinary excretion of amphetamines is increased, and efficacy is reduced, by acidifying agents used in methenamine therapy. Norepinephrine Amphetamines enhance the adrenergic effect of norepinephrine. Phenobarbital Amphetamines may delay intestinal absorption of phenobarbital; coadministration of phenobarbital may produce a synergistic anticonvulsant action. Phenytoin Amphetamines may delay intestinal absorption of phenytoin; coadministration of phenytoin may produce a synergistic anticonvulsant action. Propoxyphene In cases of propoxyphene overdosage, amphetamine CNS stimulation is potentiated and fatal convulsions can occur. Proton Pump Inhibitors Time to maximum concentration (T max ) of amphetamine is decreased compared to when administered alone. Monitor patients for changes in clinical effect and adjust therapy based on clinical response. An example of a proton pump inhibitor is omeprazole. Veratrum Alkaloids Amphetamines inhibit the hypotensive effect of veratrum alkaloids.

Teratogenic Effects Amphetamine, in the enantiomer ratio present in Mixed Salts of a Single Entity Amphetamine Product (d- to l- ratio of 3:1), had no apparent effects on embryofetal morphological development or survival when orally administered to pregnant rats and rabbits throughout the period of organogenesis at doses of up to 6 and 16 mg/kg/day, respectively. These doses are approximately 1.5 and 8 times, respectively, the maximum recommended human dose of 30 mg/day [child] on a mg/m 2 body surface area basis. Fetal malformations and death have been reported in mice following parenteral administration of d-amphetamine doses of 50 mg/kg/day (approximately 6 times that of a human dose of 30 mg/day [child] on a mg/m 2 basis) or greater to pregnant animals. Administration of these doses was also associated with severe maternal toxicity. A number of studies in rodents indicate that prenatal or early postnatal exposure to amphetamine (d- or d,l-), at doses similar to those used clinically, can result in long-term neurochemical and behavioral alterations. Reported behavioral effects include learning and memory deficits, altered locomotor activity, and changes in sexual function. There are no adequate and well-controlled studies in pregnant women. There has been one report of severe congenital bony deformity, tracheo-esophageal fistula, and anal atresia (vater association) in a baby born to a woman who took dextroamphetamine sulfate with lovastatin during the first trimester of pregnancy. Amphetamines should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Nonteratogenic Effects Infants born to mothers dependent on amphetamines have an increased risk of premature delivery and low birth weight. Also, these infants may experience symptoms of withdrawal as demonstrated by dysphoria, including agitation, and significant lassitude.

Usage in Nursing Mothers Amphetamines are excreted in human milk. Mothers taking amphetamines should be advised to refrain from nursing.

Long-term effects of amphetamines in children have not been well established. Amphetamines are not recommended for use in children under 3 years of age with Attention Deficit Hyperactivity Disorder described under INDICATIONS AND USAGE .

Mixed Salts of a Single Entity Amphetamine Product have not been studied in the geriatric population.