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Lisdexamfetamine Dimesylate Oral

FDA Drug Information • Also known as: Arynta

Brand Names
Arynta
Route
ORAL
Dosage Form
SOLUTION
Product Type
HUMAN PRESCRIPTION DRUG

⚠ Boxed Warning (Black Box)

WARNING: ABUSE, MISUSE, AND ADDICTION ARYNTA has a high potential for abuse and misuse, which can lead to the development of a substance use disorder, including addiction. Misuse and abuse of CNS stimulants, including ARYNTA, can result in overdose and death [see Overdosage ( 10 )] , and this risk is increased with higher doses or unapproved methods of administration, such as snorting or injection. Before prescribing ARYNTA, assess each patient's risk for abuse, misuse, and addiction. Educate patients and their families about these risks, proper storage of the drug, and proper disposal of any unused drug. Throughout ARYNTA treatment, reassess each patient's risk of abuse, misuse, and addiction and frequently monitor for signs and symptoms of abuse, misuse, and addiction [see Warnings and Precautions ( 5.1 ), Drug Abuse and Dependence ( 9.2 )]. WARNING: ABUSE, MISUSE, AND ADDICTION See full prescribing information for complete boxed warning. ARYNTA has a high potential for abuse and misuse, which can lead to the development of a substance use disorder, including addiction. Misuse and abuse of CNS stimulants, including ARYNTA, can result in overdose and death ( 5.1 , 9.2 , 10 ):

  • Before prescribing ARYNTA, assess each patient's risk for abuse, misuse, and addiction.
  • Educate patients and their families about these risks, proper storage of the drug, and proper disposal of any unused drug.
  • Throughout treatment, reassess each patient's risk and frequently monitor for signs and symptoms of abuse, misuse, and addiction.

    • Description

    11 DESCRIPTION ARYNTA (lisdexamfetamine dimesylate), is a CNS stimulant. The chemical designation for lisdexamfetamine dimesylate is (2S)-2,6-diamino-N-[(1S)-1-methyl-2-phenylethyl] hexanamide dimethanesulfonate. The molecular formula is C 15 H 25 N 3 O∙(CH 4 O 3 S) 2 , which corresponds to a molecular weight of 455.60. The chemical structure is: Lisdexamfetamine dimesylate is a white to off-white powder that is soluble in water (792 mg/mL). The pH is 4.24. The pKa values are 10.21 and 15.89. ARYNTA oral solution is a clear colorless solution, contains 10 mg/mL of lisdexamfetamine dimesylate (equivalent to 5.8 mg of lisdexamfetamine). Inactive ingredients: dibasic sodium phosphate dihydrate, methylparaben sodium, monobasic sodium phosphate dihydrate, propylparaben sodium, propylene glycol, saccharin sodium, hydrochloric acid, sodium hydroxide and purified water. Lisdex Structure

    What Is Lisdexamfetamine Dimesylate Oral Used For?

    1 INDICATIONS AND USAGE ARYNTA is indicated for the treatment of: Attention Deficit Hyperactivity Disorder (ADHD) in adults and pediatric patients 6 years and older [see Clinical Studies ( 14.1 )] Moderate to severe binge eating disorder (BED) in adults [see Clinical Studies ( 14.2 )] . Limitations of Use: The use of ARYNTA is not recommended in pediatric patients younger than 6 years of age because they had higher plasma exposure and a higher incidence of adverse reactions (e.g., weight loss) than patients 6 years and older at the same dosage [see Warnings and Precautions ( 5.5 ), Use in Specific Populations ( 8.4 )] . ARYNTA is not indicated or recommended for weight loss. Use of other sympathomimetic drugs for weight loss has been associated with serious cardiovascular adverse events. The safety and effectiveness of ARYNTA for the treatment of obesity have not been established [see Warnings and Precautions ( 5.2 )] . ARYNTA is a central nervous system (CNS) stimulant indicated for the treatment of ( 1 ): Attention Deficit Hyperactivity Disorder (ADHD) in adults and pediatric patients 6 years and older. Moderate to severe binge eating disorder (BED) in adults Limitations of Use : The use of ARYNTA is not recommended in pediatric patients younger than 6 years of age because they had higher plasma exposure and a higher incidence of adverse reactions (e.g., weight loss) than patients 6 years and older at the same dosage ( 5.5 , 8.4 ) ARYNTA is not indicated for weight loss. Use of other sympathomimetic drugs for weight loss has been associated with serious cardiovascular adverse events. The safety and effectiveness of ARYNTA for the treatment of obesity have not been established ( 5.2 )

    Dosage and Administration

    2 DOSAGE AND ADMINISTRATION Indicated Population Initial Dose Titration Schedule Recommended Dose Maximum Dose ADHD (Adults and pediatric patients 6 years and older) ( 2.2 ) 30 mg every morning 10 mg or 20 mg weekly 30 mg to 70 mg per day 70 mg per day BED (Adults) ( 2.3 ) 30 mg every morning 20 mg weekly 50 mg to 70 mg per day 70 mg per day

  • Prior to treatment, assess for presence of cardiac disease ( 2.4 )
  • Severe renal impairment: Maximum dose is 50 mg/day ( 2.5 )
  • End stage renal disease (ESRD): Maximum dose is 30 mg/day ( 2.5 ) 2.1 Pretreatment Screening Prior to treating patients with ARYNTA, assess:
  • for the presence of cardiac disease (i.e., perform a careful history, family history of sudden death or ventricular arrhythmia, and physical exam) [see Warnings and Precautions ( 5.2 )] .
  • the family history and clinically evaluate patients for motor or verbal tics or Tourette's syndrome before initiating ARYNTA [see Warnings and Precautions ( 5.8 )] . 2.2 General Administration Information Take ARYNTA orally in the morning with or without food; avoid afternoon doses because of the potential for insomnia. Instruct caregivers/patients to read the ‘Instructions for Use’ for complete administration instructions.
  • Use the oral dosing syringe and bottle adapter provided with ARYNTA.
  • Ensure that the bottle adapter is firmly inserted into the bottle before first use and keep the adapter in place for the duration of the usage of the bottle.
  • Throw away (discard) any remaining ARYNTA 30 days after first opening the bottle. 2.3 Dosage for Treatment of ADHD The recommended starting dosage in adults and pediatric patients 6 years and older is 30 mg once daily in the morning. Dosage may be adjusted in increments of 10 mg or 20 mg at approximately weekly intervals up to maximum recommended dosage of 70 mg once daily [see Clinical Studies ( 14.1 )] . 2.4 Dosage for Treatment of Moderate to Severe BED in Adults The recommended starting dosage in adults is 30 mg once daily to be titrated in increments of 20 mg at approximately weekly intervals to achieve the recommended target dose of 50 mg to 70 mg once daily. The maximum recommended dosage is 70 mg once daily [see Clinical Studies ( 14.2 )]. Discontinue ARYNTA if binge eating does not improve. 2.5 Dosage in Patients with Renal Impairment In patients with severe renal impairment (GFR 15 to < 30 mL/min/1.73 m 2 ), the maximum dosage should not exceed 50 mg once daily. In patients with end stage renal disease (ESRD, GFR < 15 mL/min/1.73 m 2 ), the maximum recommended dosage is 30 mg once daily [see Use in Specific Populations ( 8.6 )] . 2.6 Dosage Modifications due to Drug Interactions Agents that alter urinary pH can impact urinary excretion and alter blood levels of amphetamine. Acidifying agents (e.g., ascorbic acid) decrease blood levels, while alkalinizing agents (e.g., sodium bicarbonate) increase blood levels. Adjust ARYNTA dosage accordingly [see Drug Interactions ( 7.1 )] .

    • Side Effects (Adverse Reactions)

    6 ADVERSE REACTIONS The following adverse reactions are discussed in greater detail in other sections of the labeling:

  • Known hypersensitivity to amphetamine products or other ingredients of ARYNTA [see Contraindications ( 4 )]
  • Hypertensive Crisis When Used Concomitantly with Monoamine Oxidase Inhibitors [see Contraindications ( 4 ) and Drug Interactions ( 7.1 )]
  • Abuse, Misuse, and Addiction [see Boxed Warning, Warnings and Precautions ( 5.1 ), and Drug Abuse and Dependence ( 9.2 , 9.3 )]
  • Risks to Patients with Serious Cardiac Disease [see Warnings and Precautions ( 5.2 )]
  • Increased Blood Pressure and Heart Rate [see Warnings and Precautions ( 5.3 )]
  • Psychiatric Adverse Reactions [see Warnings and Precautions ( 5.4 )]
  • Long-Term Suppression of Growth in Pediatric Patients [see Warnings and Precautions ( 5.5 )]
  • Peripheral Vasculopathy, including Raynaud's phenomenon [see Warnings and Precautions ( 5.6 )]
  • Serotonin Syndrome [see Warnings and Precautions ( 5.7 )]
  • Motor and Verbal Tics, and Worsening of Tourette's Syndrome [see Warnings and Precautions ( 5.8 )] Most common adverse reactions (incidence ≥5% and at a rate at least twice placebo) in pediatric patients ages 6 to 17 years, and/or adults with ADHD were anorexia, anxiety, decreased appetite, decreased weight, diarrhea, dizziness, dry mouth, irritability, insomnia, nausea, upper abdominal pain, and vomiting. ( 6.1 ) Most common adverse reactions (incidence ≥5% and at a rate at least twice placebo) in adults with BED were dry mouth, insomnia, decreased appetite, increased heart rate, constipation, feeling jittery, and anxiety. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Azurity Pharmaceuticals, Inc., at 1-800-461-7449 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. Attention Deficit Hyperactivity Disorder The safety data in this section is based on data from the 4-week controlled parallel-group clinical studies of Lisdexamfetamine Dimesylate in pediatric and adult patients with ADHD [see Clinical Studies ( 14.1 )]. Adverse Reactions Associated with Discontinuation of Treatment in ADHD Clinical Trials In the controlled trial in pediatric patients ages 6 to 12 years (Study 1), 8% (18/218) of ARYNTA-treated patients discontinued due to adverse reactions compared to 0% (0/72) of placebo-treated patients. The most frequently reported adverse reactions (1% or more and twice rate of placebo) were ECG voltage criteria for ventricular hypertrophy, tic, vomiting, psychomotor hyperactivity, insomnia, decreased appetite and rash [2 instances for each adverse reaction, i.e., 2/218 (1%)]. Less frequently reported adverse reactions (less than 1% or less than twice rate of placebo) included abdominal pain upper, dry mouth, weight decreased, dizziness, somnolence, logorrhea, chest pain, anger and hypertension. In the controlled trial in pediatric patients ages 13 to 17 years (Study 4), 3% (7/233) of ARYNTA-treated patients discontinued due to adverse reactions compared to 1% (1/77) of placebo-treated patients. The most frequently reported adverse reactions (1% or more and twice rate of placebo) were decreased appetite (2/233; 1%) and insomnia (2/233; 1%). Less frequently reported adverse reactions (less than 1% or less than twice rate of placebo) included irritability, dermatillomania, mood swings, and dyspnea. In the controlled adult trial (Study 7), 6% (21/358) of ARYNTA-treated patients discontinued due to adverse reactions compared to 2% (1/62) of placebo-treated patients. The most frequently reported adverse reactions (1% or more and twice rate of placebo) were insomnia (8/358; 2%), tachycardia (3/358; 1%), irritability (2/358; 1%), hypertension (4/358; 1%),...

    • Drug Interactions

    7 DRUG INTERACTIONS Acidifying and Alkalinizing Agents : Agents that alter urinary pH can alter blood levels of amphetamine. Acidifying agents decrease amphetamine blood levels, while alkalinizing agents increase amphetamine blood levels. Adjust ARYNTA dosage accordingly. ( 2.6 , 7.1 ) 7.1 Drugs Having Clinically Important Interactions with Amphetamines Table 5 Drugs Having Clinically Important Interactions with Amphetamines MAO Inhibitors (MAOI) Prevention or Management Do not administer ARYNTA during or within 14 days following the administration of MAOI [see Contraindications ( 4 )] . Mechanism and Clinical Effect(s) MAOI antidepressants slow amphetamine metabolism, increasing amphetamines effect on the release of norepinephrine and other monoamines from adrenergic nerve endings causing headaches and other signs of hypertensive crisis. Toxic neurological effects and malignant hyperpyrexia can occur, sometimes with fatal results. Serotonergic Drugs Prevention or Management Initiate with lower doses and monitor patients for signs and symptoms of serotonin syndrome, particularly during ARYNTA initiation or dosage increase. If serotonin syndrome occurs, discontinue ARYNTA and the concomitant serotonergic drug(s) [see Warnings and Precautions ( 5.7 )] . Mechanism and Clinical Effect(s) The concomitant use of lisdexamfetamine dimesylate and serotonergic drugs increases the risk of serotonin syndrome. CYP2D6 Inhibitors Prevention or Management Initiate with lower doses and monitor patients for signs and symptoms of serotonin syndrome particularly during ARYNTA initiation and after a dosage increase. If serotonin syndrome occurs, discontinue ARYNTA and the CYP2D6 inhibitor [see Warnings and Precautions ( 5.7 ) and Overdosage ( 10 )]. Mechanism and Clinical Effect(s) The concomitant use of lisdexamfetamine dimesylate and CYP2D6 inhibitors may increase the exposure of dextroamphetamine, the active metabolite of lisdexamfetamine dimesylate compared to the use of the drug alone and increase the risk of serotonin syndrome. Alkalinizing Agents Prevention or Management Co-administration of ARYNTA and urinary alkalinizing agents should be avoided. Mechanism and Clinical Effect(s) Urinary alkalinizing agents can increase blood levels and potentiate the action of amphetamine. Acidifying Agents Prevention or Management Increase dose based on clinical response. Mechanism and Clinical Effect(s) Urinary acidifying agents can lower blood levels and efficacy of amphetamines. Tricyclic Antidepressants Prevention or Management Monitor frequently and adjust or use alternative therapy based on clinical response. Mechanism and Clinical Effect(s) 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.

    Contraindications

    4 CONTRAINDICATIONS ARYNTA is contraindicated in patients with:

  • Known hypersensitivity to amphetamine products or other ingredients of ARYNTA. Anaphylactic reactions, Stevens-Johnson Syndrome, angioedema, and urticaria have been observed in postmarketing reports [see Adverse Reactions ( 6.2 )].
  • 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 Precautions ( 5.7 ) and Drug Interactions ( 7.1 )].
  • Known hypersensitivity to amphetamine products or other ingredients in ARYNTA ( 4 )
  • Use with monoamine oxidase (MAO) inhibitor, or within 14 days of the last MAO inhibitor dose ( 4 , 7.1 )

    • Pregnancy and Breastfeeding

    8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to ADHD medications during pregnancy. Healthcare providers are encouraged to register patients by calling the National Pregnancy Registry for Psychostimulants at 1-866-961-2388 or visiting online at https://womensmentalhealth.org/clinical-and-research-programs/pregnancyregistry/adhd-medications/. Risk Summary The limited available data from published literature and postmarketing reports on use of ARYNTA in pregnant women are not sufficient to inform a drug-associated risk for major birth defects and miscarriage. Adverse pregnancy outcomes, including premature delivery and low birth weight, have been seen in infants born to mothers dependent on amphetamines [ see Clinical Considerations ]. In animal reproduction studies, lisdexamfetamine dimesylate (a prodrug of d-amphetamine) had no effects on embryo-fetal morphological development or survival when administered orally to pregnant rats and rabbits throughout the period of organogenesis. Pre- and postnatal studies were not conducted with lisdexamfetamine dimesylate. However, amphetamine (d- to l- ratio of 3:1) administration to pregnant rats during gestation and lactation caused a decrease in pup survival and a decrease in pup body weight that correlated with a delay in developmental landmarks at clinically relevant doses of amphetamine. In addition, adverse effects on reproductive performance were observed in pups whose mothers were treated with amphetamine. Long-term neurochemical and behavioral effects have also been reported in animal developmental studies using clinically relevant doses of amphetamine [see Data]. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth...

    Overdosage

    10 OVERDOSAGE Clinical Effects of Overdose Overdose of CNS stimulants is characterized by the following sympathomimetic effects:

  • Cardiovascular effects including tachyarrhythmias, and hypertension or hypotension. Vasospasm, myocardial infarction, or aortic dissection may precipitate sudden cardiac death. Takotsubo cardiomyopathy may develop.
  • CNS effects including psychomotor agitation, confusion, and hallucinations. Serotonin syndrome, seizures, cerebral vascular accidents, and coma may occur.
  • Life-threatening hyperthermia (temperatures greater than 104°F) and rhabdomyolysis may develop. Overdose Management Consider the possibility of multiple drug ingestion. The pharmacokinetic profile of ARYNTA should be considered when treating patients with overdose. Lisdexamfetamine and d-amphetamine are not dialyzable. Consider contacting the Poison Help line (1-800-222-1222) or a medical toxicologist for additional overdose management recommendations.

    • How Supplied

    16 HOW SUPPLIED/STORAGE AND HANDLING 16.1 How Supplied ARYNTA oral solution is a clear colorless solution contains 10 mg/mL of lisdexamfetamine dimesylate. It is packaged in 100 mL PET bottles with a child resistant closure and in 30 mL, 60 mL, 90 mL, 120 mL HDPE bottles with child resistant closures as follows: Each sealed bottle is co-packaged with one press-in bottle adapter and one oral dosing syringe. NDC Number Size 24338-019-01 100 mL 24338-103-01 30 mL 24338-160-01 60 mL 24338-109-01 90 mL 24338-162-01 120 mL 16.2 Storage and Handling ARYNTA is stored at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature]. Keep the container tightly closed. Throw away (discard) any remaining ARYNTA 30 days after first opening the bottle.

    About This Information

    This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.

    What are side effects?

    Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.

    What are drug interactions?

    Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.