
mydayis
Mydayis is a combination medicine containing Amphetamine Aspartate, Amphetamine Sulfate, Dextroamphetamine Saccharate, and Dextroamphetamine Sulfate.
Amphetamine Aspartate and Amphetamine Sulfate and Dextroamphetamine Saccharate and Dextroamphetamine Sulfate · by Takeda Pharms USA
Available as a generic: Dextroamp Saccharate, Amp Aspartate, Dextroamp Sulfate and Amp Sulfate
Key facts
- Active ingredient
- Amphetamine Aspartate and Amphetamine Sulfate and Dextroamphetamine Saccharate and Dextroamphetamine Sulfate
- Form
- Capsule, extended release
- Strength
- Amphetamine Aspartate 12.5MG; Amphetamine Sulfate 12.5MG; Dextroamphetamine Saccharate 12.5MG; Dextroamphetamine Sulfate 12.5MG · Amphetamine Aspartate 3.125MG; Amphetamine Sulfate 3.125MG; Dextroamphetamine Saccharate 3.125MG; Dextroamphetamine Sulfate 3.125MG · Amphetamine Aspartate 6.25MG; Amphetamine Sulfate 6.25MG; Dextroamphetamine Saccharate 6.25MG; Dextroamphetamine Sulfate 6.25MG · Amphetamine Aspartate 9.375MG; Amphetamine Sulfate 9.375MG; Dextroamphetamine Saccharate 9.375MG; Dextroamphetamine Sulfate 9.375MG
- Type
- Prescription (Rx)
- Brand or generic
- Brand-name
- Manufacturer
- Takeda Pharms USA
- Half-life
- about 10 to 11 hours for d-amphetamine (range 9.8 to 11 hours) and about 12 to 14 hours for l-amphetamine (range 11.5 to 13.8 hours) in healthy adults (how long it stays in your system)
- FDA application
- NDA022063
- FDA boxed warning
- Yes — see the boxed warning
What is Mydayis?
From the FDA label:MYDAYIS extended-release capsules contain mixed salts of a single-entity amphetamine, a CNS stimulant. MYDAYIS contains equal amounts (by weight) of four salts: dextroamphetamine sulfate and amphetamine sulfate, dextroamphetamine saccharate and amphetamine aspartate monohydrate. This results in a 3:1 mixture of dextro- to levo- amphetamine base equivalent. The 12.5 mg, 25 mg, 37.5 mg, and 50 mg strength capsules are for oral administration. They contain three types of drug-releasing beads, an immediate release and two different types of delayed release (DR) beads. The first DR bead releases amphetamine at pH 5.5 and the other DR bead releases amphetamine at pH 7.0. CAPSULE STRENGTHS EACH CAPSULE CONTAINS: 12.5 mg 25 mg 37.5 mg 50 mg Dextroamphetamine Saccharate 3.125 mg 6.250 mg 9.375 mg 12.500 mg Amphetamine Aspartate Monohydrate 3.125 mg 6.250 mg 9.375 mg 12.500 mg Dextroamphetamine Sulfate 3.125 mg 6.250 mg 9.375 mg 12.500 mg Amphetamine Sulfate 3.125 mg 6.250 mg 9.375 mg 12.500 mg Total mixed amphetamine salts 12.500 mg 25 mg 37.5 mg 50 mg Total amphetamine base equivalence 7.8 mg 15.6 mg 23.5 mg 31.3 mg Inactive Ingredients and Colors The inactive ingredients in MYDAYIS capsules include: hard gelatin capsules, ethylcellulose, hydroxypropyl methylcellulose, methacrylic acid copolymer, methyl acrylate, methyl methacrylate, methacrylic acid copolymer, Opadry ® beige, sugar…
How to use
MYDAYIS should be administered once daily upon awakening . Recommended Starting Dose Titration Schedule Maximum Daily Dose Adults 12.5 mg 12.5 mg weekly 50 mg Pediatrics (13 to 17) 12.5 mg 12.5 mg weekly 25 mg In adult patients with severe renal impairment the maximum dose should not exceed 25 mg daily. Use in adult patients with ESRD is not recommended. ( 2.6 , 8.6 ) The maximum dose in pediatric patients with severe renal impairment is 12.5 mg daily. Use in pediatric patients with ESRD is not recommended. ( 2.6 , 8.6 ) Patients are advised to take consistently either with or without food. ( 2.2 ) Administer upon awakening because the effects may last up to 16 hours and there is the potential for insomnia. ( 2.2 ) Prior to treatment, assess for presence of cardiac disease. ( 2.1 ) To avoid substitution errors and overdosage, do not substitute for other amphetamine products on a milligram-per-milligram basis because of different amphetamine base compositions and differing pharmacokinetic profiles. ( 2.7 ) 2.1 Pretreatment Screening Prior to treating patients with MYDAYIS, 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…
Side effects
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) ] Hypersensitivity to amphetamine products or other ingredients of MYDAYIS [see Contraindications (4) ] Hypertensive Crisis When Used Concomitantly with Monoamine Oxidase Inhibitors [see Contraindications (4) , Drug Interactions (7.1) ] 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) ] Seizures [see Warnings and Precautions (5.7) ] Serotonin Syndrome [see Warnings and Precautions (5.8) ] Motor and Verbal Tics, and Worsening of Tourette's Syndrome [see Warnings and Precautions (5.10) ] Most common adverse reactions in patients with ADHD (incidence ≥5% and at a rate at least twice placebo) are: Pediatrics (13 years and older): insomnia, decreased appetite, decreased weight, irritability, and nausea. ( 6.1 ) Adults: insomnia, decreased appetite, decreased weight, dry mouth, increased heart rate, and…
FDA Boxed Warning (the FDA’s most serious warning)
Boxed (black-box) warning — from the FDA label
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) ]. WARNING: ABUSE, MISUSE, AND ADDICTION See full prescribing information for complete boxed warning. 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 ( 5.1 , 9.2 , 10 ): 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 treatment, reassess each patient’s risk and frequently monitor for signs and symptoms of abuse, misuse, and addiction.
Warnings
Important safety information
Risks to Patients with Serious Cardiac Disease: Avoid use in patients with known structural cardiac abnormalities, cardiomyopathy, serious cardiac arrhythmia, coronary artery disease, or other serious cardiac disease. ( 5.2 ) Increased Blood Pressure and Heart Rate: Monitor blood pressure and pulse. ( 5.3 ) Psychiatric Adverse Reactions: Prior to initiating MYDAYIS, screen patients for risk factors for developing a manic episode. If new psychotic or manic symptoms occur, consider discontinuing MYDAYIS. ( 5.4 ) Long-Term Suppression of Growth in Pediatric Patients: Closely monitor growth (height and weight) in pediatric patients. Pediatric patients not growing or gaining height or weight as expected may need to have their treatment interrupted. ( 5.5 ) Peripheral Vasculopathy, Including Raynaud’s Phenomenon: Careful observation for digital changes is necessary during MYDAYIS treatment. Further clinical evaluation (e.g., rheumatology referral) may be appropriate for patients who develop signs or symptoms of peripheral vasculopathy. ( 5.6 ) Seizures: May lower the convulsive threshold. If a seizure occurs, discontinue MYDAYIS. ( 5.7 ) Serotonin Syndrome: Increased risk when coadministered with serotonergic agents (e.g., SSRIs, SNRIs, triptans), but also during overdosage situations. If it occurs, discontinue MYDAYIS and initiate supportive treatment. ( 5.8 ) Motor and Verbal Tics, and Worsening of Tourette’s Syndrome: Before initiating MYDAYIS, assess the family history and clinically evaluate patients for tics or Tourette’s syndrome. Regularly monitor patients for the emergence or worsening of tics or Tourette’s syndrome. Discontinue treatment if clinically appropriate. ( 5.10 ) 5.1 Abuse, Misuse, and Addiction 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. 5.2 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 stimulants at the recommended ADHD dosage. Avoid MYDAYIS use in patients with known structural cardiac abnormalities, cardiomyopathy, serious cardiac arrhythmia, coronary artery disease, or other serious cardiac disease. 5.3 Increased Blood Pressure and Heart Rate CNS stimulants cause an increase in blood pressure (mean increase about 2 to 4 mmHg) and heart rate (mean increase about 3 to 6 bpm). Some patients may have larger increases. Monitor all MYDAYIS-treated patients for potential tachycardia and hypertension [see Adverse Reactions (6.1) ] . 5.4 Psychiatric Adverse Reactions Exacerbation of Pre-Existing Psychosis CNS stimulants may exacerbate symptoms of behavior disturbance and thought disorder in patients with a pre-existing psychotic disorder. Induction of a Manic Episode in Patients with Bipolar Disorder CNS stimulants may induce a manic or mixed episode in patients with bipolar disorder. Prior to initiating MYDAYIS 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, and depression). New Psychotic or Manic Symptoms CNS stimulants, at the recommended dosage, 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 to 0% of placebo-treated patients. If such symptoms occur, consider discontinuing MYDAYIS. 5.5 Long-Term Suppression of Growth in Pediatric Patients CNS stimulants have been associated with weight loss and slowing of growth rate in pediatric patients. In a 4-week, placebo-controlled trial of MYDAYIS in patients ages 6 to 17 years old with ADHD, there was a decrease in weight in the MYDAYIS groups compared to weight gain in the placebo group [see Adverse Reactions (6.1) ] . Closely monitor growth (weight and height) in MYDAYIS-treated pediatric patients. Pediatric patients who are not growing or gaining weight as expected may need to have their treatment interrupted. MYDAYIS is not approved for use in pediatric patients 12 years and younger [see Use in Specific Populations (8.4) ] . 5.6 Peripheral Vasculopathy, Including Raynaud’s Phenomenon CNS stimulants, including MYDAYIS, used to treat ADHD are associated with peripheral vasculopathy, including Raynaud’s phenomenon. Signs and symptoms are usually intermittent and mild; however, sequelae have included digital ulceration and/or soft tissue breakdown. Effects of peripheral vasculopathy, including Raynaud’s phenomenon, were observed in post-marketing reports and at the therapeutic dosage 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 MYDAYIS treatment. Further clinical evaluation (e.g., rheumatology referral) may be appropriate for MYDAYIS-treated patients who develop signs or symptoms of peripheral vasculopathy. 5.7 Seizures MYDAYIS may lower the convulsive threshold in patients with prior history of seizure, in patients with prior EEG abnormalities in the absence of seizures, and in patients without a history of seizures and no prior EEG evidence of seizures. In the presence of seizures, MYDAYIS should be discontinued. 5.8 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 (7.1) ] . The coadministration with cytochrome P450 2D6 (CYP2D6) inhibitors may also increase the risk with increased exposure to MYDAYIS. In these situations, consider an alternative nonserotonergic drug or an alternative drug that does not inhibit CYP2D6 [see Drug Interactions (7.1) ] . 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 MYDAYIS with MAOI drugs is contraindicated [see Contraindications (4) ] . Discontinue treatment with MYDAYIS and any concomitant serotonergic agents immediately if the above symptoms occur, and initiate supportive symptomatic treatment. If concomitant use of MYDAYIS with other…
Who should not take Mydayis
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) ] . Known hypersensitivity to amphetamine products or other ingredients in MYDAYIS. ( 4 ) Use with monoamine oxidase (MAO) inhibitors, or within 14 days of the last MAO inhibitor dose. ( 4 , 7.1 )
Overdose — what happens if you take too much
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 MYDAYIS should be considered when treating patients with overdose. D-amphetamine is not dialyzable. Consider contacting the Poison Help line (1-800-222-1222) or a medical toxicologist for additional overdose management recommendations.
U.S. Poison Control: call or text 1-800-222-1222 (free, 24/7). In an emergency call 911. From the FDA label; not medical advice.
Interactions
Acidifying and Alkalinizing Agents: Agents that alter GI and urinary pH can alter blood levels of amphetamine. Acidifying agents (GI and urinary) decrease amphetamine blood levels, while alkalinizing agents (GI and urinary) increase amphetamine blood levels. Adjust MYDAYIS dosage accordingly. ( 2.5 , 7.1 ) 7.1 Drugs Having Clinically Important Interactions with Amphetamines Table 3: Drugs Having Clinically Important Interactions with Amphetamines Monoamine Oxidase Inhibitors (MAOIs) Clinical Impact 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. Intervention Do not administer MYDAYIS during or within 14 days following the administration of MAOI [see Contraindications (4) ] . Serotonergic Drugs Clinical Impact The concomitant use of amphetamines and serotonergic drugs increases the risk of serotonin syndrome. Intervention Initiate with lower doses and monitor patients for signs and symptoms of serotonin syndrome, particularly during MYDAYIS initiation or dosage increase. If serotonin syndrome occurs, discontinue MYDAYIS and concomitant serotonergic drug(s) [see Warnings and Precautions (5.8) ] . Alkalinizing Agents Clinical Impact May increase exposure to amphetamine and exacerbate the action of amphetamine. Intervention Caution should be taken when coadministering MYDAYIS and gastrointestinal and urinary alkalinizing agents. Acidifying Agents Clinical Impact Lower blood levels and efficacy of amphetamines. Intervention Increase dose of MYDAYIS based on clinical response. Tricyclic Antidepressants Clinical Impact May enhance the activity of tricyclic or sympathomimetic agents causing sustained increases in the concentration of d-amphetamine in the brain; cardiovascular effects can be potentiated. Intervention Monitor frequently and adjust MYDAYIS dose or use alternative therapy based on clinical response. CYP2D6 Inhibitors Clinical Impact May increase the exposure of amphetamine. Intervention Start with lower doses and monitor frequently and adjust MYDAYIS dose or use alternative therapy based on clinical response. Gastric pH Modulators Clinical Impact Potential change in shape of PK profile and exposure may occur. Intervention Monitor patients for changes in clinical effect and use alternative therapy based on clinical response. 7.2 Interference with Laboratory Tests 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.
How long does Amphetamine Aspartate and Amphetamine Sulfate and Dextroamphetamine Saccharate and Dextroamphetamine Sulfate stay in your body?
The elimination half-life of amphetamine aspartate and amphetamine sulfate and dextroamphetamine saccharate and dextroamphetamine sulfate is about 10 to 11 hours for d-amphetamine (range 9.8 to 11 hours) and about 12 to 14 hours for l-amphetamine (range 11.5 to 13.8 hours) in healthy adults — the time it takes the body to clear about half of it. As a rule of thumb, a medicine is mostly gone after roughly 4 to 5 half-lives, though this varies from person to person with age and kidney or liver function. These are elimination half-lives for the two amphetamine isomers themselves; l-amphetamine clears more slowly than d-amphetamine. Elimination speeds up in acidic urine and slows in alkaline urine, and can be prolonged by kidney or liver problems.
This is general information, not medical advice. It doesn’t tell you when a drug test would read negative (tests detect substances for different, often longer, windows) or when it’s safe to take another dose — ask your pharmacist or prescriber. Source: Adderall (dextroamphetamine and amphetamine) CII tablet — FDA/DailyMed label, Clinical Pharmacology.
Dosage forms
Capsule, extended release
The forms currently marketed in the U.S., per the FDA National Drug Code Directory.
Ways to save
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Frequently asked questions
- Is there a coupon or discount for Mydayis?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Mydayis. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
- Who makes Mydayis?
- Mydayis is marketed by Takeda Pharms USA. You can see Takeda Pharms USA's full profile, rating, and other products on pharmaranks.
- Is Mydayis a brand-name or generic drug?
- Mydayis is a brand-name product with the active ingredient Amphetamine Aspartate and Amphetamine Sulfate and Dextroamphetamine Saccharate and Dextroamphetamine Sulfate. Lower-cost generic equivalents containing Amphetamine Aspartate and Amphetamine Sulfate and Dextroamphetamine Saccharate and Dextroamphetamine Sulfate are available — ask your pharmacist.
- Is Mydayis available over the counter?
- No. Mydayis is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
- What forms does Mydayis come in?
- Mydayis is currently marketed as capsule, extended release, per the FDA's National Drug Code Directory.
- Is Mydayis FDA-registered?
- Mydayis is on record with the U.S. FDA under application number NDA022063. You can verify this on its official FDA label.
- Is Mydayis safe?
- There's no single safe-or-not verdict, and we don't yet have a composite recall-safety score for Mydayis. Review its FDA-label side effects and warnings below, and always consult a licensed professional.
- What are the side effects of Mydayis?
- Mydayis's side effects are taken directly from its FDA label. From the label: 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 ,… Both common and serious reactions are documented in full on this page. This is general reference from the FDA, not medical advice — always consult a professional.
Clinical content sourced from the FDA label via openFDA (U.S. FDA). View the FDA label on DailyMed → Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
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