Metadate CD

(methylphenidate hydrochloride extended-release, biphasic beads)

Metadate CD (methylphenidate hydrochloride extended-release, biphasic beads); CII

Summary

Metadate CD is a bead-filled methylphenidate capsule delivering 30% of the dose immediately and holding 70% in extended-release beads, approved for ADHD in children 6 to 15 years. Weighting the dose toward the afternoon is its differentiator: less morning spike and more late coverage than the 50 / 50 bead capsules. The capsule can be opened and sprinkled without changing exposure. Schedule II; brand and generic.

Forms & Strengths

• Extended-release capsules (biphasic beads, may be opened onto applesauce): 10 mg, 20 mg, 30 mg, 40 mg, 50 mg, 60 mg

Dosing

• Age: 6 to 15 y/o only; no indication at 16, 17 or in adults
• Onset: ~ 1 hour
• Duration: about 8 hours
• Release Profile: 30% IR / 70% ER via biphasic beads
• Initial Dose: 20 mg once daily in the morning, before breakfast
• Titration: 10 - 20 mg every 7 days
• Max Dose: 60 mg/day
• Considerations: Give before breakfast; a high-fat meal raises Cmax ~30% and delays the peak an hour. Alcohol releases 84% of the dose in the first hour, so counsel adolescents. May be opened onto applesauce.

Pharmacology

• Mechanism: Blocks presynaptic dopamine and norepinephrine reuptake at DAT and NET; does not meaningfully promote catecholamine release at therapeutic doses
• Delivery / Release: 30% IR / 70% ER via biphasic beads. First peak at a median 1.5 h, second at ~4.5 h; a quarter to a third of children show only one peak.
• Metabolism: De-esterified to ritalinic acid, inactive. Not a CYP substrate. Mean terminal half-life 6.8 hours, against 2.9 h for IR tablets and 3.4 h for OROS.
• Class Positioning: The most afternoon-weighted bead capsule: 30/70 against the 50/50 of Ritalin LA. Against Concerta it is two-peaked and can be sprinkled. Its liability is alcohol.
• Alcohol: at 40% alcohol, 84% of the dose is released within the first hour; Concerta shows no such release. The label instructs counseling to avoid alcohol.

Indications

• ADHD (ICD-10: F90.0, F90.1, F90.2, F90.8, F90.9): patients 6 to 15 y/o

Off-Label Uses

• ADHD at 16 and older, including adults (ICD-10: F90.x): easy to do inadvertently, since a stable 15 year old becomes off-label on a birthday. Insufficient. (AHRQ 2024)
• ADHD in children 4 to 5 years old (ICD-10: F90.x): behavioral parent training first line; if medication is needed use IR methylphenidate. Expert consensus. (AAP 2019)
• Narcolepsy (ICD-10: G47.419): IR methylphenidate carries this indication, Metadate CD does not. Insufficient.
• Where the evidence does not support use: treatment-resistant depression, binge eating disorder, cancer-related and chronic fatigue. Adult literature only; insufficient in children. (AHRQ 2024)
• Cognitive enhancement in a youth without ADHD: not an indication and not supported.

Contraindications & Warnings

• Boxed Warning: Abuse, misuse and addiction, with overdose and death. Assess abuse risk before prescribing and reassess throughout treatment.
• Contraindicated:
  • Hypersensitivity to methylphenidate or any component
  • MAOI use, current or within 14 days: hypertensive crisis
• Use with caution:
  • Structural cardiac abnormality, cardiomyopathy, arrhythmia or coronary disease: avoid
  • Pre-existing hypertension: monitor blood pressure and pulse
  • Psychotic or bipolar disorder: exacerbation and treatment-emergent mania
  • Significant hyperopia or angle-closure risk: refer to ophthalmology
  • Personal or family history of tics or Tourette's syndrome
  • Any adolescent drinking alcohol or at risk of it
  • Substance use disorder in patient or household; a bead capsule is not abuse-deterrent
• Screen before starting:
  • Cardiac history and exam including family sudden death; the label requires no routine ECG
  • Tics, and risk factors for a manic episode
  • Alcohol use in an adolescent, asked directly and separately from other substance use
  • Abuse and diversion risk in patient and household
  • Baseline height, weight, blood pressure and heart rate; age against the 6 to 15 indication

Drug Interactions

• MAOIs (phenelzine, tranylcypromine, selegiline, linezolid, methylene blue): hypertensive crisis. Contraindicated within 14 days.
• Alcohol: 84% released in the first hour at 40% alcohol. Advise every adolescent to avoid it; pick another agent where drinking is likely.
• Antihypertensives: effectiveness reduced. Increase BP monitoring and adjust the antihypertensive.
• Halogenated anesthetics (sevoflurane, isoflurane, desflurane): intraoperative BP and HR surge. Hold on the day of surgery.
• Risperidone: EPS may increase when either dose changes in either direction. Monitor across any titration.
• Serotonergic agents (SSRIs, SNRIs, TCAs, triptans, tramadol): serotonin syndrome in postmarketing reports only, not in the interaction table. Counsel on symptoms.

Administration

• Once daily in the morning, before breakfast, which is a labeled instruction.
• Swallow whole, or sprinkle onto about a tablespoon of applesauce and give immediately with fluids.
• Sprinkling does not change Cmax or AUC. Never store the mixture.
• Do not crush or chew; chewing turns the extended fraction into an immediate one.
• Avoid alcohol: at 40% alcohol, 84% of the dose is released in the first hour.
• Missed dose: skip it; a late dose peaks in the evening.
• Store locked; a bead capsule is easily opened.

Side Effects

• Common, pediatric 6 to 15 y (>= 5% and above placebo): headache 12% vs 8%, anorexia 9% vs 2%, abdominal pain 7% vs 4%, insomnia 5% vs 2%. Anorexia and insomnia show the widest gap over placebo.
• Serious:
  • Cardiac arrest and sudden death with structural cardiac disease: avoid in that population
  • New psychosis or mania, including with no psychiatric history: consider discontinuing
  • Priapism, sometimes surgical, typically after a dose increase and also during drug holidays
  • Peripheral vasculopathy and Raynaud's with digital ulceration: assess digits each visit
  • Long-term growth suppression; acute angle closure glaucoma; new or worsening tics and Tourette's
  • Postmarketing: suicidal behavior including completed suicide, aggression, OCD, thrombocytopenia, angioedema, rhabdomyolysis, convulsions, cerebral hemorrhage

Monitoring & Labs

• Alcohol use: ask at every visit from about age 12. This product releases 84% of the dose within an hour with alcohol.
• Appetite and weight: at every visit; ask whether breakfast is actually eaten.
• Growth: height, weight and BMI at baseline and every 6 months; failure to gain triggers interruption.
• Cardiovascular: BP and HR at baseline, at every dose change, and at least every 6 months.
• Sleep: at every visit and dose change; with 70% extended, an evening problem is likelier the drug than the child.
• Psychiatric and tics: screen for psychosis, mania, aggression, depressed mood and tics at every visit; ask about suicidal thoughts where depression is comorbid.
• Age against indication: check at every annual visit. The indication ends at 15; plan the switch before 16. Concerta is labeled to 65, Aptensio XR has no upper limit.
• Abuse and diversion: at every refill, capsule count, ask about sharing and selling, check the PDMP. A boxed-warning obligation.
• Laboratory: none is required by this label.

Discontinuation & Taper

• No taper required; the label gives no tapering schedule.
• Discontinue if no improvement after appropriate dose adjustment over one month.
• Withdrawal after prolonged use: dysphoria, fatigue, vivid dreams, sleep change, increased appetite.
• Priapism has occurred during drug holidays and on discontinuation.
• Drug holidays are reasonable where growth limits treatment; a capsule cannot be part-dosed, and the gap is felt most in the afternoon.

Pregnancy & Lactation

• Pregnancy: no drug-associated risk of major birth defects or miscarriage identified. Stimulant vasoconstriction may reduce placental perfusion. Background risk 2% to 4% and 15% to 20%.
• Lactation: infant dose 0.16% to 0.7% of the maternal weight-adjusted dose; undetectable in infant serum in every reported case. Not a reason to stop breastfeeding. (LactMed 2025)
• Lactation, milk supply: prolactin falls; large doses may interfere before supply is established. Monitor the infant for agitation, insomnia and poor weight gain. (LactMed 2025)
• Exposure Registry: National Pregnancy Registry for ADHD Medications, 1-866-961-2388, womensmentalhealth.org/adhd-medications.

Counseling Points

• Counsel the family on:

  • Alcohol releasing most of the day's dose in an hour. Say it to the adolescent directly, before the first prescription.
  • Giving the capsule before breakfast, not with it; a fatty breakfast raises the peak by a third.
  • About a tablespoon of applesauce, taken at once, never chewed or made up in advance. Exposure matches the intact capsule.
  • The dose being weighted to the afternoon, 30% now and 70% later, so the morning effect is smaller.
  • The approval ending at 15, so the plan changes in mid-adolescence.
  • Locked storage; a capsule of loose beads is easily emptied.

• Advise them to call for:

  • Chest pain, fainting, or a racing heart that does not settle.
  • New hallucinations, or new suspicious or fearful thinking.
  • Any talk of self-harm or suicide, or a marked drop in mood.
  • Numbness, coldness or colour change in fingers or toes, or a sore that will not heal.
  • A new or markedly worse tic, including throat clearing and blinking.
  • A painful erection lasting more than a few hours, including during a planned break.
  • Unusual bruising or bleeding; eye pain with halos around lights.
  • Clothes fitting more loosely, or no weight gain across a few months.

References

1. DailyMed. Metadate CD (methylphenidate hydrochloride) extended-release capsules prescribing information. Aytu BioPharma. 2025. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=be59f8b4-7842-42cc-9559-bfa747f0baa5
2. FDA. openFDA National Drug Code Directory, generic_name methylphenidate. 2026. https://api.fda.gov/drug/ndc.json?search=generic_name:%22methylphenidate%22&limit=1000
3. LactMed. Methylphenidate. Drugs and Lactation Database, NICHD. 2025. https://www.ncbi.nlm.nih.gov/books/NBK501310/
4. American Academy of Pediatrics. Clinical practice guideline for the diagnosis, evaluation, and treatment of ADHD in children and adolescents. Pediatrics. 2019. https://publications.aap.org/pediatrics/article/144/4/e20192528/81590/
5. AHRQ. Attention deficit hyperactivity disorder: diagnosis and treatment in children and adolescents. Comparative Effectiveness Review No. 267. 2024. https://www.ncbi.nlm.nih.gov/books/NBK602989/