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Drug Safety-related Labeling Changes (SrLC)

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MYDAYIS (NDA-022063)

(AMPHETAMINE ASPARTATE; AMPHETAMINE SULFATE; DEXTROAMPHETAMINE SACCHARATE; DEXTROAMPHETAMINE SULFATE)

Safety-related Labeling Changes Approved by FDA Center for Drug Evaluation and Research (CDER)

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04/23/2026 (SUPPL-7)

Approved Drug Label (PDF)

4 Contraindications

Additions and/or revisions underlined:

MYDAYIS is contraindicated in patients with:

  • Known hypersensitivity to amphetamine, or other components of MYDAYIS. Hypersensitivity reactions such as angioedema and anaphylactic reactions have been reported in patients treated with other amphetamine products [see Adverse Reactions (6.2)].
  • Concomitant treatment with monoamine oxidase inhibitors (MAOIs), and also within 14 days of stopping MAOIs (including MAOIs such as linezolid or intravenous methylene blue), because of an increased risk of hypertensive crisis [see Drug Interactions (7.1)].

7 Drug Interactions

7.2 Laboratory Tests

Subsection title revised

Additions and/or revisions underlined:

Amphetamines can cause a significant elevation in plasma corticosteroid levels. This increase is greatest in the evening. Amphetamines may interfere with urinary steroid determinations.

Allow for an adequate washout period between administration of MYDAYIS and radioactive diagnostic agents used for dopamine transporter (DAT) visualization. MYDAYIS can interfere with the test results of a radioactive diagnostic agent (ioflupane I-123) that is used for DAT visualization by binding and internalization of the DAT, which may result in lower DAT in the striatum. This may lead to false-positive diagnostic results.

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

MEDICATION GUIDE

Additions and/or revisions underlined:

Who should not take MYDAYIS?

Do not take MYDAYIS if you or your child are:

  • allergic to amphetamine or any of the ingredients in MYDAYIS. See the end of the Medication Guide for a complete list of ingredients in MYDAYIS.

  • taking, or have stopped taking within the past 14 days, a medicine called a monoamine oxidase inhibitor (MAOI), including the antibiotic linezolid or intravenous methylene blue.

Before taking MYDAYIS, tell your healthcare provider about all medical conditions, including if you or your child:

  • are pregnant or plan to become pregnant. It is not known if MYDAYIS will harm your unborn baby. Tell your healthcare provider if you become pregnant or think you may be pregnant during treatment with MYDAYIS.

Your healthcare provider may tell you to stop taking MYDAYIS for a short time before you get certain imaging tests because MYDAYIS may impact the results of some tests.

How should I take MYDAYIS?

  • Swallow MYDAYIS capsules whole or if MYDAYIS capsules cannot be swallowed whole, the capsules may be opened and sprinkled over a spoonful of applesauce

    • do not divide the medicine in the capsule. Take all the contents in the capsule.

  • The dose (strength) of MYDAYIS is not the same as other amphetamine medicines. Do not change between MYDAYIS and other amphetamine medicines that have the same strength.

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

Concomitant Medications

Advise patients to notify their physicians if they are taking, or plan to take, any prescription or over-the-counter drugs because there is a potential for interactions [see Drug Interactions (7.1)].

Advise patient or caregiver of steps to take with MYDAYIS when a laboratory imaging procedure is ordered [see Drug Interactions (7.2)].

10/13/2023 (SUPPL-5)

Approved Drug Label (PDF)

Boxed Warning

Additions and/or revisions underlined:

WARNING: ABUSE, MISUSE, AND ADDICTION

MYDAYIS 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 MYDAYIS, 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 MYDAYIS, 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 MYDAYIS 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)].

5 Warnings and Precautions

 

5.1Abuse, Misuse, and Addiction

Additions and/or revisions underlined:

MYDAYIS has a high potential for abuse and misuse. The use of MYDAYIS exposes individuals to the risks of abuse and misuse, which can lead to the development of a substance use disorder, including addiction. MYDAYIS can be diverted for non-medical use into illicit channels or distribution [see Drug Abuse and Dependence (9.2 )]. Misuse and abuse of CNS stimulants, including MYDAYIS, 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 MYDAYIS, 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 MYDAYIS in a safe place, preferably locked, and instruct patients to not give MYDAYIS to anyone else. Throughout MYDAYIS treatment, reassess each patient’s risk of abuse, misuse, and addiction and frequently monitor for signs and symptoms of abuse, misuse, and addiction.

5.10 Motor and Verbal Tics, and Worsening of Tourette’s Syndrome

New subsection added:

CNS stimulants, including amphetamine, have been associated with the onset or exacerbation of motor and verbal tics. Worsening of Tourette’s syndrome has also been reported [see Adverse Reactions (6.2)].

Before initiating MYDAYIS, assess the family history and clinically evaluate patients for tics or Tourette’s syndrome. Regularly monitor MYDAYIS-treated patients for the emergence or worsening of tics or Tourette’s syndrome, and discontinue treatment if clinically appropriate.

6 Adverse Reactions

Additions and/or revisions underlined:

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

  • Abuse, Misuse, and Addiction [see Boxed Warning, Warnings and Precautions (5.1), Drug Abuse and Dependence (9.2, 9.3)]

Motor and Verbal Tics, and Worsening of Tourette’s Syndrome [see Warnings and Precautions (5.10)]

6.2  Adverse Reactions Associated with the Use of Amphetamines

Additions and/or revisions underlined:

Central Nervous System: Psychotic episodes at recommended doses, overstimulation, restlessness, euphoria, dyskinesia, dysphoria, headache, tics, fatigue, aggression, anger, logorrhea, dermatillomania, and paresthesia (including formication), motor and verbal tics.

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

PATIENT COUNSELING INFORMATION

Additions and/or revisions underlined:

Abuse, Misuse, and Addiction

Educate patients and their families about the risks of abuse, misuse, and addiction of MYDAYIS, which can lead to overdose and death, and proper disposal of any unused drug [see Warnings and Precautions (5.1), Drug Abuse and Dependence (9.2), Overdosage (10)]. Advise patients to store MYDAYIS in a safe place, preferably locked, and instruct patients to not give MYDAYIS to anyone else.

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 MYDAYIS. Instruct patients to notify their healthcare provider if emergence of new tics or worsening of tics or Tourette’s syndrome occurs [see Warnings and Precautions (5.10)].

MEDICATION GUIDE

Medication Guide has undergone extensive changes; please refer to label.

02/25/2022 (SUPPL-3)

Approved Drug Label (PDF)

6 Adverse Reactions

6.2 Adverse Reactions Associated with the Use of Amphetamines

Additions underlined

Gastrointestinal: Unpleasant taste, constipation, intestinal ischemia.

09/13/2019 (SUPPL-1)

Approved Drug Label (PDF)

8 Use in Specific Populations

Pediatric Use

Additions and/or revisions underlined: 

Safety and effectiveness of MYDAYIS in pediatric patients with ADHD ages 13 to 17 years have been established in two placebo-controlled clinical studies.

Safety and effectiveness of MYDAYIS have not been established in pediatric patients ages 12 years and younger.

MYDAYIS has been studied for the treatment of ADHD in pediatric patients 6 to 12 years in two placebo controlled safety and efficacy trials.  In the first trial, pediatric patients 6 to 12 years experienced higher rates of adverse reactions in some cases compared to patients 13 years and older, including higher rates of insomnia (30% versus 8%) and appetite decreased (43% versus 22%). In addition, amphetamine systemic exposures (both d- and l-) in pediatric patients 6 to 12 years following a single dose were higher than those observed in adults at the same dose (72-79% higher Cmax and approximately 83% higher AUC). A second trial evaluated a lower dose than those approved for pediatric patients 13 to 17 years; efficacy was not demonstrated for the lower dose. Therefore, a safe and effective dose cannot be established in pediatric patients 12 years and younger.

Pregnancy

Newly added information:

Pregnancy Exposure Registry

There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to MYDAYIS during pregnancy. Healthcare providers are encouraged to register patients by calling the National Pregnancy Registry for Psychiatric Medications at 1-866-961-2388 or visiting online at https://womensmentalhealth.org/research/pregnancyregistry/.

17 PCI/PI/MG (Patient Counseling Information/Patient Information/Medication Guide)

PATIENT COUNSELING INFORMATION

Newly added information:

Pregnancy Registry

Advise patients that there is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to MYDAYIS during pregnancy.