Methylphenidate Hydrochloride 20 mg Tablet, 100-count — NDC 0406-1146-01 (Billing 00406-1146-01)
This is a package of 100 tablets of Methylphenidate Hydrochloride 20 mg Tablet from SpecGx LLC, marketed since Nov 1998 and currently FDA-listed; retail pharmacies pay about $0.2014 per tablet (NADAC). It is the main listing for this product, which comes in 2 package sizes.
Other active recalls for Methylphenidate Hydrochloride (different manufacturers) — 1 · tap to view
Identity & classification
Regulatory identifiers FDA, NLM and CMS codes for this package
Drug-database identifiers Medi-Span GPI and First Databank GCN / HICL / AHFS classification
- GSN (GCN sequence number): 004027
- GCN: 15920
- GPI-14 (Medi-Span): 61400020100315
- HICL (First Databank): 001682
- AHFS class code: 28:20.32.00
- RxCUI (RxNorm): 1091150
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 1, 2026
- RxNorm (NLM RxNav) · catalog refreshed Oct 1, 2026
- Medi-Span GPI (licensed)
- First Databank (licensed) · refreshed Oct 1, 2026
RxNorm drug class
This medicine belongs to the Central Nervous System Stimulant class.
Where does this data come from?
- RxClass (NLM) · catalog refreshed Oct 1, 2026
Clinical
Methylphenidate is used to control symptoms of attention deficit hyperactivity disorder (ADHD; condition that makes it hard to pay attention, control your behavior, and remain still or quiet) and to treat narcolepsy (condition that causes people to be very sleepy during the day and to fall asleep suddenly). Methylphenidate is in a class of medications called central nervous system (CNS) stimulants. It works by changing the amounts of certain natural substances in the brain.
Read the full MedlinePlus article ↗- It mainly treats ADHD, and some products are also used for narcolepsy. The exact approval depends on the product and the age group. Your prescriber chooses the right one for you.
- It depends on your product. Many extended-release forms are taken once daily in the morning, while Jornay PM is taken in the evening. Swallow extended-release tablets whole, and fo...
- The most common ones are decreased appetite, headache, dry mouth, nausea, trouble sleeping, anxiety and dizziness. Children and teens may get upper stomach pain. Call your doctor i...
- Call for chest pain, fainting, a racing heartbeat, hallucinations, seizures, painful erections that won’t go away, or color changes in your fingers or toes. Also call if you notice...
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Methylphenidate Hydrochloride — tap one for details:
Where does this data come from?
- MedlinePlus (NLM) · refreshed Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 1, 2026
Ask a licensed pharmacist directly — free, answered by our team.
Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per ea | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $0.201 | $20.14 / 100 tablets |
| Medicaid paysCMS SDUD · 12 mo | $0.3645 | $36.45 / 100 tablets |
| Medicare drug plans payPart D · Q2 2026 | $0.3262 | $32.62 / 100 tablets |
Where does this data come from?
- CMS NADAC weekly file · file of Sep 30, 2026
- CMS ASP pricing files · refreshed Sep 20, 2026
- CMS Medicaid State Drug Utilization Data · through Q1 2026
- CMS Part D plan pricing files · refreshed Sep 24, 2026
- VA National Acquisition Center price file
Packaging — all sizes for this product
| Package NDC | Description | Per unit | Per pack | Marketing start | Marketing end | Status |
|---|---|---|---|---|---|---|
| 00406-1146-01 You're viewing this Main listing | 100 TABLET in 1 BOTTLE | $0.2014 / ea | $20.14 | 1998-11-27 | — | Active |
| 00406-1146-10 0406-1146-10 | 1000 TABLET in 1 BOTTLE | — | — | 1998-11-27 | — | Active |
You're viewing the smallest of 2 pack sizes for this product.
In Medicaid, this is the most-dispensed pack of this product — about 100% of fills over the last four reported quarters. See all packs ↓
Pack size FAQ
What quantity is in this package?
How does this package differ from NDC 00406-1146-10?
What NDC number is used to bill for this package of Methylphenidate Hydrochloride 20 mg Tablet?
Prices are the latest CMS NADAC pharmacy acquisition cost per NDC; per-pack figures are per-unit × pack quantity, shown only when the pack is denominated in the same measure NADAC prices.
Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Methylphenidate Hydrochloride 20 mg 00115-1802-01 | Amneal | 100 tablets | $0.201 | — | Availability likely | — |
| Methylphenidate Hydrochloride 20 mgthis 00406-1146-01 | SpecGx | 100 tablets | $0.201 | AB | Availability likely | — |
| Methylphenidate Hydrochloride 20 mg 10702-0102-01 | KVK-TECH, | 100 tablets | $0.201 | AB | Availability likely | — |
| Methylphenidate Hydrochloride 20 mg 16729-0480-01 | Accord | 100 tablets | $0.201 | AB | Availability likely | — |
| Methylphenidate Hydrochloride 20 mg 31722-0175-01 | Camber | 100 tablets | $0.201 | AB | Availability likely | — |
| Methylphenidate hydrochloride 20 mg 43547-0488-10 | Solco | 100 tablets | $0.201 | AB | Availability likely | — |
| Methylphenidate Hydrochloride 20 mg 50268-0529-15 | AvPAK | 50 tablets | $0.201 | AB | Discontinued | — |
| Methylphenidate Hydrochloride 20 mg 67877-0618-01 | Ascend | 100 tablets | $0.201 | AB | Availability likely | — |
| Methylphenidate Hydrochloride 20 mg 75834-0326-01 | Nivagen | 100 tablets | $0.201 | AB | Availability likely | — |
| Methylphenidate Hydrochloride 20 mg 43386-0575-01 | Lupin | 100 tablets | $0.227 | AB | FDA listed | +13% |
| Ritalin 20 mg 00078-0441-05 | Novartis | 100 tablets | $1.633 | AB | Discontinued | +711% |
| Ritalin 20 mg 66758-0275-01 | Sandoz | 100 tablets | $1.633 | AB | Availability likely | +711% |
| Methylphenidate Hydrochloride 20 mg 13107-0382-01 | Aurolife | 100 tablets | — | — | FDA listed | — |
| Methylphenidate Hydrochloride 20 mg 55466-0103-12 | Neolpharma, | 100 tablets | — | AB | Discontinued | — |
| Methylphenidate Hydrochloride 20 mg 57664-0230-08 | Sun | 100 tablets | — | AB | FDA listed | — |
| Methylphenidate Hydrochloride 20 mg 71335-1219-01 | Bryant | 30 tablets | — | AB | FDA listed | — |
| Methylphenidate Hydrochloride 20 mg 72162-2087-01 | Bryant | 100 tablets | — | — | FDA listed | — |
| Methylphenidate Hydrochloride 20 mg 72162-2430-01 | Bryant | 100 tablets | — | AB | FDA listed | — |
| Methylphenidate Hydrochloride 20 mg 72865-0124-01 | XLCare | 100 tablets | — | AB | FDA listed | — |
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA Orange Book · refreshed Sep 3, 2026
- CMS NADAC weekly file · file of Sep 30, 2026
Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
Where does this data come from?
- FDA Orange Book · refreshed Sep 3, 2026
What it looks like
Where does this data come from?
- FDA label on DailyMed · label index refreshed Oct 1, 2026
Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII EWQ57Q8I5X
Lactose monohydrate is a natural sugar derived from milk. It serves as a filler and binder in tablets and capsules, helping create the proper size, texture, and consistency of the medicine.
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UNII 70097M6I30
Magnesium stearate is a salt made from magnesium and stearic acid, a fatty substance. It's used in tablets and capsules as a lubricant and glidant to help ingredients flow smoothly during manufacturing and prevent sticking.
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UNII OP1R32D61U
Microcrystalline cellulose is a purified form of cellulose, a natural fiber from plant sources. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and give the medicine its shape and size.
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UNII 7SEV7J4R1U
A powder made from a naturally occurring mineral. In medicines, talc works as a glidant and anti-caking agent, helping tablets and capsules flow smoothly during manufacturing and preventing clumping.
4 inactive ingredients listed in the exact product block matched to this NDC.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.- FDA label on DailyMed · label index refreshed Oct 1, 2026
- FDA openFDA NDC Directory · synced Oct 1, 2026
Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
Why might an inactive ingredient be missing?
Can inactive ingredients matter?
Manufacturer & labeler
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- Drugs@FDA
Full prescribing information FDA SPL
🚨 Boxed Warning ▾
WARNING: ABUSE, MISUSE, AND ADDICTION Methylphenidate hydrochloride tablets have 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 methylphenidate hydrochloride tablets, 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 methylphenidate hydrochloride tablets, 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 methylphenidate hydrochloride tablets 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 ) and Drug Abuse and Dependence ( 9.2 )]. WARNING: ABUSE, MISUSE, AND ADDICTION See full prescribing information for complete boxed warning.
Methylphenidate hydrochloride tablets have 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 methylphenidate hydrochloride tablets, can result in overdose and death ( 5.1 , 9.2 , 10 ): Before prescribing methylphenidate hydrochloride tablets, 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.
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE Methylphenidate hydrochloride tablets are indicated for the treatment of: Attention Deficit Hyperactivity Disorders (ADHD) in pediatric patients 6 years and older and adults Narcolepsy Methylphenidate hydrochloride is a central nervous system (CNS) stimulant indicated for the treatment of Attention Deficit Hyperactivity Disorders (ADHD) and Narcolepsy ( 1 ).
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION Pediatric Patients 6 Years and Older: Start with 5 mg twice daily (before breakfast and lunch), titrating the dose weekly in 5- to 10-mg increments. Dosages above 60 mg/day are not recommended ( 2.2 ). Adults: Average daily dosage is 20 mg to 30 mg, administered 2 or 3 times daily, preferably 30 to 45 minutes before meals. Maximum total daily dosage is 60 mg ( 2.2 ).
2.1Pretreatment Screening Prior to treating patients with methylphenidate hydrochloride tablets, 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 methylphenidate hydrochloride tablets [see Warnings and Precautions ( 5.10 )] .
2.2General Dosing Information Pediatric Patients 6 years and Older: Start with 5 mg orally twice daily (before breakfast and lunch). Increase dosage gradually, in increments of 5 to 10 mg weekly. Daily dosage above 60 mg is not recommended.
Adults: Average dosage is 20 to 30 mg daily. Administer orally in divided doses 2 or 3 times daily, preferably 30 to 45 minutes before meals. Maximum total daily dosage is 60 mg.
Patients who are unable to sleep if medication is taken late in the day should take the last dose before 6 p.m.
2.3Dosage Reduction and Discontinuation If paradoxical worsening of symptoms or other adverse reactions occur, reduce the dosage, or, if necessary, discontinue methylphenidate hydrochloride tablets. If improvement is not observed after appropriate dosage adjustment over a one-month period, the drug should be discontinued.
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Tablets 5 mg, round, white unscored tablet debossed with 5 on one side and a on the other side 10 mg, round, white scored tablet debossed with 10 on one side of the tablet and a on the other side 20 mg, round, white scored tablet debossed with 20 on one side of the tablet and a on the other side Tablets: 5 mg, 10 mg, and 20 mg ( 3 ) Boxed M Boxed M Boxed M
⛔ Contraindications ▾
4 CONTRAINDICATIONS Hypersensitivity to methylphenidate or other components of methylphenidate hydrochloride tablets. Hypersensitivity reactions, such as angioedema and anaphylactic reactions, have been reported in patients treated with methylphenidate [see Adverse Reactions ( 6.1 )] . Concomitant treatment with monoamine oxidase inhibitors (MAOIs), or within 14 days following discontinuation of treatment with an MAOI, because of the risk of hypertensive crises [see Drug Interactions ( 7.1 )] .
Known hypersensitivity to methylphenidate or other product components of methylphenidate hydrochloride tablets ( 4 ). Concurrent treatment with a monoamine oxidase inhibitor (MAOI), or use of an MAOI within the preceding 14 days ( 4 ).
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS Risks to Patients with Serious Cardiac Disease: Avoid use in patients with known structural cardiac abnormalities, cardiomyopathy, serious cardiac arrhythmias, 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 methylphenidate hydrochloride tablets, screen patients for risk factors for developing a manic episode.
If new psychotic or manic symptoms occur, consider discontinuing methylphenidate hydrochloride tablets ( 5.4 ). Priapism: If abnormally sustained or frequent and painful erections occur, patients should seek immediate medical attention ( 5.5 ). Peripheral Vasculopathy, Including Raynaud’s Phenomenon: Careful observation for digital changes is necessary during methylphenidate hydrochloride tablets treatment.
Further clinical evaluation (e.g., rheumatology referral) may be appropriate for patients who develop signs or symptoms of peripheral vasculopathy ( 5.6 ). 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 ( 5.7 ).
Acute Angle Closure Glaucoma: Methylphenidate hydrochloride tablets-treated patients considered at risk for acute angle closure glaucoma (e.g., patients with significant hyperopia) should be evaluated by an ophthalmologist ( 5.8 ). Increased Intraocular Pressure (IOP) and Glaucoma: Prescribe methylphenidate hydrochloride tablets to patients with open-angle glaucoma or abnormally increased IOP only if the benefit of treatment is considered to outweigh the risk. Closely monitor patients with a history of increased IOP or open-angle glaucoma ( 5.9 ).
Motor and Verbal Tics, and Worsening of Tourette’s Syndrome: Before initiating methylphenidate hydrochloride tablets, 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 ).
5.1Abuse, Misuse, and Addiction Methylphenidate hydrochloride tablets have a high potential for abuse and misuse. The use of methylphenidate hydrochloride tablets exposes individuals to the risks of abuse and misuse, which can lead to the development of a substance use disorder, including addiction. Methylphenidate hydrochloride tablets 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 methylphenidate hydrochloride tablets, 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 methylphenidate hydrochloride tablets, 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 methylphenidate hydrochloride tablets in a safe place, preferably locked, and instruct patients to not give methylphenidate hydrochloride tablets to anyone else. Throughout methylphenidate hydrochloride tablets treatment, reassess each patient’s risk of abuse, misuse, and addiction and frequently monitor for signs and symptoms of abuse, misuse, and addiction.
5.2Risks to Patients with Serious Cardiac Disease Sudden death has been reported in patients with structural cardiac abnormalities or other serious cardiac disease who are treated with CNS stimulants at the recommended ADHD dosage. Avoid methylphenidate hydrochloride tablets use in patients with known serious structural cardiac abnormalities, cardiomyopathy, serious cardiac arrhythmia, coronary artery disease, or other serious cardiac disease.
5.3Increased Bloo… [Excerpted — this section continues on DailyMed.]
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS The following are discussed in more 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 )] Known hypersensitivity to methylphenidate or other ingredients of methylphenidate hydrochloride tablets [see Contraindications ( 4 )] Hypertensive crisis with Concomitant Use of 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 )] Priapism [see Warnings and Precautions ( 5.5 )] Peripheral Vasculopathy, Including Raynaud’s Phenomenon [see Warnings and Precautions ( 5.6 )] Long-Term Suppression of Growth in Pediatric Patients [see Warnings and Precautions ( 5.7 )] Acute Angle Closure Glaucoma [see Warnings and Precautions ( 5.8 )] Increased Intraocular Pressure and Glaucoma [see Warnings and Precautions ( 5.9 )] Motor and Verbal Tics, and Worsening of Tourette’s Syndrome [see Warnings and Precautions ( 5.10 )] The following adverse reactions associated with the use of methylphenidate hydrochloride tablets and other methylphenidate products were identified in clinical trials, spontaneous reports, and literature.
Because these reactions were reported voluntarily from a population of uncertain size, it is not always possible to estimate their frequency reliably or to establish a causal relationship to drug exposure. Adverse Reactions Reported with Methylphenidate Hydrochloride Tablets Infections and Infestations: nasopharyngitis Blood and the Lymphatic System Disorders: leukopenia, thrombocytopenia, anemia Immune System Disorders: hypersensitivity reactions, including angioedema, and anaphylaxis Metabolism and Nutrition Disorders: decreased appetite, reduced weight gain, and suppression of growth during prolonged use in pediatric patients Psychiatric Disorders: insomnia, anxiety, restlessness, agitation, psychosis (sometimes with visual and tactile hallucinations), depressed mood, depression Nervous System Disorders: headache, dizziness, tremor, dyskinesia, including choreoatheetoid movements, drowsiness, convulsions, cerebrovascular disorders (including vasculitis, cerebral hemorrhages and cerebrovascular accidents), serotonin syndrome in combination with serotonergic drugs Eye Disorders: blurred vision, difficulties in visual accommodation Cardiac Disorders: tachycardia, palpitations, increased blood pressure, arrhythmias, angina pectoris Respiratory, Thoracic, and Mediastinal Disorders: cough Gastrointestinal Disorders: dry mouth, nausea, vomiting, abdominal pain, dyspepsia Hepatobiliary Disorders: abnormal liver function, ranging from transaminase elevation to severe hepatic injury Skin and Subcutaneous Tissue Disorders: hyperhidrosis, pruritus, urticaria, exfoliative dermatitis, scalp hair loss, erythema multiforme rash, thrombocytopenic purpura Musculoskeletal and Connective Tissue Disorders: arthralgia, muscle cramps, rhabdomyolysis, trismus Investigations: weight loss (adult ADHD patients) Vascular Disorders: peripheral coldness, Raynaud's phenomenon Additional Adverse Reactions Reported with Other Methylphenidate-Containing Products The list below shows adverse reactions not listed for methylphenidate hydrochloride tablets that have been reported with other methylphenidate-containing products.
Blood and Lymphatic Disorders: pancytopenia Immune System Disorders: hypersensitivity reactions, such as auricular swelling, bullous conditions, eruptions, exanthemas Psychiatric Disorders: affect lability, mania, disorientation, and libido changes Nervous System Disorders: migraine, motor and verbal tics Eye Disorders: diplopia, increased intraocular pressure, mydriasis Cardiac Disorders: sudden cardiac death, myocardial infarction, bradycardia, extrasy… [Excerpted — this section continues on DailyMed.]
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS Antihypertensive Drugs: Monitor blood pressure. Adjust dosage of antihypertensive drug as needed ( 7.1 ).
7.1Clinically Important Drug Interactions with Methylphenidate Hydrochloride Tablets Table 1 presents clinically important drug interactions with methylphenidate hydrochloride tablets. Table 1: Clinically Important Drug Interactions with Methylphenidate Hydrochloride Tablets Monoamine Oxidase Inhibitors (MAOI) Clinical Impact Concomitant use of MAOIs and CNS stimulants, including methylphenidate hydrochloride tablets can cause hypertensive crisis. Potential outcomes include death, stroke, myocardial infarction, aortic dissection, ophthalmological complications, eclampsia, pulmonary edema, and renal failure [see Contraindications ( 4 )] .
Intervention Concomitant use of methylphenidate hydrochloride tablets with MAOIs or within 14 days after discontinuing MAOI treatment is contraindicated. Antihypertensive Drugs Clinical Impact Methylphenidate hydrochloride tablets may decrease the effectiveness of drugs used to treat hypertension [see Warnings and Precautions ( 5.3 )] . Intervention Monitor blood pressure and adjust the dosage of the antihypertensive drug as needed.
Halogenated Anesthetics Clinical Impact Concomitant use of halogenated anesthetics and methylphenidate hydrochloride tablets may increase the risk of sudden blood pressure and heart rate increase during surgery. Intervention Avoid use of methylphenidate hydrochloride tablets in patients being treated with anesthetics on the day of surgery. Risperidone Clinical Impact Combined use of methylphenidate with risperidone when there is a change, whether an increase or decrease, in dosage of either or both medications, may increase the risk of extrapyramidal symptoms (EPS).
Intervention Monitor for signs of EPS.
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS
8.1Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to ADHD medications, including methylphenidate hydrochloride tablets, during pregnancy. Healthcare providers are encouraged to register patients by calling the National Pregnancy Registry for ADHD Medications at 1-866-961-2388 or visiting https://womensmentalhealth.org/adhd-medications/. Risk Summary Published studies and postmarketing reports on methylphenidate use during pregnancy have not identified a drug-associated risk of major birth defects, miscarriage or adverse maternal or fetal outcomes.
There may be risks to the fetus associated with the use of CNS stimulants use during pregnancy (see Clinical Considerations) . No effects on morphological development were observed in embryo-fetal development studies with oral administration of methylphenidate to pregnant rats and rabbits during organogenesis at doses up to 10 and 15 times, respectively, the maximum recommended human dose (MRHD) of 60 mg/day given to adolescents on a mg/m 2 basis. However, spina bifida was observed in rabbits at a dose 52 times the MRHD given to adolescents.
A decrease in pup body weight was observed in a pre- and postnatal development study with oral administration of methylphenidate to rats throughout pregnancy and lactation at doses 6 times the MRHD given to adolescents (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 defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Clinical Considerations Fetal/Neonatal Adverse Reactions CNS stimulants, such as methylphenidate hydrochloride tablets, can cause vasoconstriction and thereby decrease placental perfusion. No fetal and/or neonatal adverse reactions have been reported with the use of therapeutic doses of methylphenidate during pregnancy; however, premature delivery and low birth weight infants have been reported in amphetamine-dependent mothers.
Data Animal Data In embryo-fetal development studies conducted in rats and rabbits, methylphenidate was administered orally at doses of up to 75 and 200 mg/kg/day, respectively, during the period of organogenesis. Malformations (increased incidence of fetal spina bifida) were observed in rabbits at the highest dose, which is approximately 52 times the MRHD of 60 mg/day given to adolescents on a mg/m 2 basis. The no effect level for embryo-fetal development in rabbits was 60 mg/kg/day (15 times the MRHD given to adolescents on a mg/m 2 basis).
There was no evidence of morphological development effects in rats, although increased incidences of fetal skeletal variations were seen at the highest dose level (10 times the MRHD of 60 mg/day given to adolescents on a mg/m 2 basis), which was also maternally toxic. The no effect level for embryo-fetal development in rats was 25 mg/kg/day (3 times the MRHD on a mg/m 2 basis). When methylphenidate was administered to rats throughout pregnancy and lactation at doses of up to 45 mg/kg/day, offspring body weight gain was decreased at the highest dose (6 times the MRHD of 60 mg/day given to adolescents on a mg/m 2 basis), but no other effects on postnatal development were observed.
The no effect level for pre- and postnatal development in rats was 15 mg/kg/day (approximately 2 times the MRHD given to adolescents on a mg/m 2 basis).
8.2Lactation Risk Summary Limited published literature, based on milk sampling from seven mothers, reports that methylphenidate is present in human milk, which resulted in infant doses of 0.16% to 0.7% of the maternal weight-adjusted dosage and a milk/plasma ratio ranging between 1.1 and 2.7. There are no reports of adverse effects on the breastfed in… [Excerpted — this section continues on DailyMed.]
🤰 Pregnancy ▾
8.1Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to ADHD medications, including methylphenidate hydrochloride tablets, during pregnancy. Healthcare providers are encouraged to register patients by calling the National Pregnancy Registry for ADHD Medications at 1-866-961-2388 or visiting https://womensmentalhealth.org/adhd-medications/. Risk Summary Published studies and postmarketing reports on methylphenidate use during pregnancy have not identified a drug-associated risk of major birth defects, miscarriage or adverse maternal or fetal outcomes.
There may be risks to the fetus associated with the use of CNS stimulants use during pregnancy (see Clinical Considerations) . No effects on morphological development were observed in embryo-fetal development studies with oral administration of methylphenidate to pregnant rats and rabbits during organogenesis at doses up to 10 and 15 times, respectively, the maximum recommended human dose (MRHD) of 60 mg/day given to adolescents on a mg/m 2 basis. However, spina bifida was observed in rabbits at a dose 52 times the MRHD given to adolescents.
A decrease in pup body weight was observed in a pre- and postnatal development study with oral administration of methylphenidate to rats throughout pregnancy and lactation at doses 6 times the MRHD given to adolescents (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 defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Clinical Considerations Fetal/Neonatal Adverse Reactions CNS stimulants, such as methylphenidate hydrochloride tablets, can cause vasoconstriction and thereby decrease placental perfusion. No fetal and/or neonatal adverse reactions have been reported with the use of therapeutic doses of methylphenidate during pregnancy; however, premature delivery and low birth weight infants have been reported in amphetamine-dependent mothers.
Data Animal Data In embryo-fetal development studies conducted in rats and rabbits, methylphenidate was administered orally at doses of up to 75 and 200 mg/kg/day, respectively, during the period of organogenesis. Malformations (increased incidence of fetal spina bifida) were observed in rabbits at the highest dose, which is approximately 52 times the MRHD of 60 mg/day given to adolescents on a mg/m 2 basis. The no effect level for embryo-fetal development in rabbits was 60 mg/kg/day (15 times the MRHD given to adolescents on a mg/m 2 basis).
There was no evidence of morphological development effects in rats, although increased incidences of fetal skeletal variations were seen at the highest dose level (10 times the MRHD of 60 mg/day given to adolescents on a mg/m 2 basis), which was also maternally toxic. The no effect level for embryo-fetal development in rats was 25 mg/kg/day (3 times the MRHD on a mg/m 2 basis). When methylphenidate was administered to rats throughout pregnancy and lactation at doses of up to 45 mg/kg/day, offspring body weight gain was decreased at the highest dose (6 times the MRHD of 60 mg/day given to adolescents on a mg/m 2 basis), but no other effects on postnatal development were observed.
The no effect level for pre- and postnatal development in rats was 15 mg/kg/day (approximately 2 times the MRHD given to adolescents on a mg/m 2 basis).
🧒 Pediatric Use ▾
8.4Pediatric Use The safety and effectiveness of methylphenidate hydrochloride tablets for the treatment of ADHD have been established in pediatric patients aged 6 to 17 years. The safety and effectiveness of methylphenidate hydrochloride tablets in pediatric patients less than age 6 years have not been established. The long-term efficacy of methylphenidate in pediatric patients has not been established.
Long-Term Suppression of Growth Growth should be monitored during treatment with stimulants, including methylphenidate hydrochloride tablets. Pediatric patients who are not growing or gaining weight as expected may need to have their treatment interrupted [see Warnings and Precautions ( 5.7 )] . Juvenile Animal Toxicity Data Rats treated with methylphenidate early in the postnatal period through sexual maturation demonstrated a decrease in spontaneous locomotor activity in adulthood.
A deficit in acquisition of a specific learning task was observed in females only. The doses at which these findings were observed are at least 4 times the MRHD of 60 mg/day given to children on a mg/m 2 basis. In a study conducted in young rats, methylphenidate was administered orally at doses of up to 100 mg/kg/day for 9 weeks, starting early in the postnatal period (postnatal Day 7) and continuing through sexual maturity (postnatal Week 10).
When these animals were tested as adults (postnatal Weeks 13 to 14), decreased spontaneous locomotor activity was observed in males and females previously treated with 50 mg/kg/day (approximately 4 times the MRHD of 60 mg/day given to children on a mg/m 2 basis) or greater, and a deficit in the acquisition of a specific learning task was seen in females exposed to the highest dose (8 times the MRHD given to children on a mg/m 2 basis). The no effect level for juvenile neurobehavioral development in rats was 5 mg/kg/day (approximately 0.5 times the MRHD given to children on a mg/m 2 basis).
The clinical significance of the long-term behavioral effects observed in rats is unknown.
🧓 Geriatric Use ▾
8.5Geriatric Use Methylphenidate hydrochloride has not been studied in the geriatric population.
🆘 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. Because methylphenidate has a large volume of distribution and is rapidly metabolized, dialysis is not useful. Consider contacting the Poison Help line (1-800-222-1222) or a medical toxicologist for additional overdose management recommendations.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Methylphenidate hydrochloride is a CNS stimulant. The mode of therapeutic action in ADHD and narcolepsy is not known.
12.2Pharmacodynamics Methylphenidate is a racemic mixture comprised of the d- and l-threo enantiomers. The d-threo enantiomer is more pharmacologically active than the l-threo enantiomer. Methylphenidate blocks the reuptake of norepinephrine and dopamine into the presynaptic neuron and increases the release of these monoamines into the extraneuronal space.
Cardiac Electrophysiology A formal QT study has not been conducted in patients taking methylphenidate hydrochloride tablets. The effect of dexmethylphenidate, the pharmacologically active d-enantiomer of methylphenidate hydrochloride tablets, on the QT interval was evaluated in a double-blind, placebo- and open-label active (moxifloxacin)-controlled study following single doses of dexmethlyphenidate XR 40 mg (maximum recommended adult total daily dosage) in 75 healthy volunteers. Electrocardiograms were collected up to 12 hours postdose.
Frederica’s method for heart rate correction was employed to derive the corrected QT interval (QTcF). The maximum mean prolongation of QTcF intervals was less than 5 ms, and the upper limit of the 90% confidence interval was below 10 ms for all time-matched comparisons versus placebo. This was below the threshold of clinical concern and there was no evident exposure response relationship.
12.3Pharmacokinetics Absorption The time to peak rate in children was 1.9 hours (0.3 to 4.4 hours) for the methylphenidate hydrochloride tablets. Distribution Binding to plasma proteins is low (10% to 33%). The volume of distribution was 2.65 ±
1.11L/kg for d-methylphenidate and 1.80 ±
0.91L/kg for l-methylphenidate. Elimination The systemic clearance is 0.40 ±
0.12L/h/kg for d-methylphenidate and 0.73 ±
0.28L/h/kg for l-methylphenidate. Metabolism Methylphenidate is metabolized primarily by de-esterification to alpha-phenyl-piperidine acetic acid (ritalinic acid), which has little or no pharmacologic activity. Excretion After oral administration, 78% to 97% of the dose is excreted in the urine and 1% to 3% in feces in the form of metabolites within 48 to 96 hours.
Most of the dose is excreted in the urine as alpha-phenyl-2-piperidine acetic acid (60% to 86%). Studies in Specific Populations Male and Female Patients No gender differences in the pharmacokinetics of methylphenidate between healthy male and female adults are expected. Racial or Ethnic Groups There is insufficient experience with the use of methylphenidate hydrochloride tablets to detect ethnic variations in pharmacokinetics.
Patients with Renal Impairment Methylphenidate hydrochloride tablets have not been studied in renally-impaired patients. Renal impairment is expected to have minimal effect on the pharmacokinetics of methylphenidate since less than 1% of a radiolabeled dose is excreted in the urine as unchanged compound, and the major metabolite (ritalinic acid), has little or no pharmacologic activity. Patients with Hepatic Impairment Methylphenidate hydrochloride tablets have not been studied in patients with hepatic impairment.
Hepatic impairment is expected to have minimal effect on the pharmacokinetics of methylphenidate since it is metabolized primarily to ritalinic acid by nonmicrosomal hydrolytic esterases that are widely distributed throughout the body.
🧬 Mechanism of Action ▾
12.1Mechanism of Action Methylphenidate hydrochloride is a CNS stimulant. The mode of therapeutic action in ADHD and narcolepsy is not known.
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING Methylphenidate Hydrochloride Tablets USP 5 mg tablets available as a round, white unscored tablet debossed with 5 on one side and a on the other side Bottles of 100........................NDC 0406-1142-01 10 mg tablets available as a round, white scored tablet debossed with 10 on one side of the tablet and a M on the other side Bottles of 100........................NDC 0406-1144-01 20 mg tablets available as a round, white scored tablet debossed with 20 on one side of the tablet and a on the other side Bottles of 100........................NDC 0406-1146-01 Store at 20° to 25°C (68° to 77°F) [see USP Controlled Room Temperature].
Protect from light. Dispense in tight, light-resistant container with child-resistant closure. Note : Methylphenidate hydrochloride tablets are color-additive free.
Boxed M Boxed M
📋 Description ▾
11 DESCRIPTION Methylphenidate hydrochloride tablets contain methylphenidate hydrochloride, a CNS stimulant. They are available as tablets of 5 mg, 10 mg, and 20 mg strengths for oral administration. Methylphenidate hydrochloride is methyl α-phenyl-2-piperidineacetate hydrochloride, and its structural formula is: Methylphenidate hydrochloride USP is a white, odorless, fine crystalline powder.
Its solutions are acid to litmus. It is freely soluble in water and in methanol, soluble in alcohol, and slightly soluble in chloroform and in acetone. Its molecular weight is 269.77 g/mol.
Methylphenidate hydrochloride tablets contain the following inactive ingredients: lactose monohydrate, magnesium stearate, microcrystalline cellulose, and talc. Note : Methylphenidate hydrochloride tablets are color-additive free. Chemical Structure
💬 Medication Guide ▾
This Medication Guide has been approved by the U.S. Food and Drug Administration Revised:10/2023 L20M46 MEDICATION GUIDE Methylphenidate Hydrochloride Tablets USP (METH il FEN i date) CII What is the most important information I should know about methylphenidate hydrochloride tablets? Methylphenidate hydrochloride tablets may cause serious side effects, including: Abuse, misuse, and addiction.
Methylphenidate hydrochloride tablets have a high chance for abuse and misuse and may lead to substance use problems, including addiction. Misuse and abuse of methylphenidate hydrochloride tablets, other methylphenidate-containing medicines, and amphetamine-containing medicines, can lead to overdose and death. The risk of overdose and death is increased with higher doses of methylphenidate hydrochloride tablets or when they are used in ways that are not approved, such as snorting or injection.
Your healthcare provider should check you or your child’s risk for abuse, misuse, and addiction before starting treatment with methylphenidate hydrochloride tablets and will monitor you or your child during treatment. Methylphenidate hydrochloride tablets may lead to physical dependence after prolonged use, even if taken as directed by your healthcare provider. Do not give methylphenidate hydrochloride tablets to anyone else.
See “ What are methylphenidate hydrochloride tablets? ” for more information. Keep methylphenidate hydrochloride tablets in a safe place and properly dispose of any unused medicine. See “ How should I store methylphenidate hydrochloride tablets? ” for more information.
Tell your healthcare provider if you or your child have ever abused or been dependent on alcohol, prescription medicines, or street drugs. Risks for people with serious heart disease. Sudden death has happened in people who have heart defects or other serious heart disease.
Your healthcare provider should check you or your child carefully for heart problems before starting methylphenidate hydrochloride tablets. Tell your healthcare provider if you or your child have any heart problems, heart disease, or heart defects. Call your healthcare provider or go to the nearest hospital emergency room right away if you or your child has any signs of heart problems, such as chest pain, shortness of breath, or fainting while taking methylphenidate hydrochloride tablets.
Increased blood pressure and heart rate. Your healthcare provider should check you or your child’s blood pressure and heart rate regularly during treatment with methylphenidate hydrochloride tablets. Mental (psychiatric) problems: All Patients new or worse behavior and thought problems new or worse bipolar illness new psychotic symptoms (such as hearing voices, believing things that are not true, are suspicious) or new manic symptoms Tell your healthcare provider about any mental problems you or your child have, or about a family history of suicide, bipolar illness, or depression.
Call your healthcare provider right away if you or your child have any new or worsening mental symptoms or problems while taking methylphenidate hydrochloride tablets, especially seeing or hearing things that are not real, believing things that are not real, or are suspicious. What are methylphenidate hydrochloride tablets? Methylphenidate hydrochloride tablets are a central nervous system (CNS) stimulant prescription medicine.
They are used for the treatment of Attention Deficit Hyperactivity Disorder (ADHD). Methylphenidate hydrochloride tablets may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD. Methylphenidate hydrochloride tablets should be used as a part of a total treatment program for ADHD that may include counseling or other therapies.
Methylphenidate hydrochloride tablets are also used in the treatment of a sleep disorder called narcolepsy. It is not known if methylphenidate hydrochloride tablets are safe and effective in children under 6 years of age. Methylphenidate hydrochlor… [Excerpted — this section continues on DailyMed.]
🧬 Pharmacokinetics ▾
12.3Pharmacokinetics Absorption The time to peak rate in children was 1.9 hours (0.3 to 4.4 hours) for the methylphenidate hydrochloride tablets. Distribution Binding to plasma proteins is low (10% to 33%). The volume of distribution was 2.65 ±
1.11L/kg for d-methylphenidate and 1.80 ±
0.91L/kg for l-methylphenidate. Elimination The systemic clearance is 0.40 ±
0.12L/h/kg for d-methylphenidate and 0.73 ±
0.28L/h/kg for l-methylphenidate. Metabolism Methylphenidate is metabolized primarily by de-esterification to alpha-phenyl-piperidine acetic acid (ritalinic acid), which has little or no pharmacologic activity. Excretion After oral administration, 78% to 97% of the dose is excreted in the urine and 1% to 3% in feces in the form of metabolites within 48 to 96 hours.
Most of the dose is excreted in the urine as alpha-phenyl-2-piperidine acetic acid (60% to 86%). Studies in Specific Populations Male and Female Patients No gender differences in the pharmacokinetics of methylphenidate between healthy male and female adults are expected. Racial or Ethnic Groups There is insufficient experience with the use of methylphenidate hydrochloride tablets to detect ethnic variations in pharmacokinetics.
Patients with Renal Impairment Methylphenidate hydrochloride tablets have not been studied in renally-impaired patients. Renal impairment is expected to have minimal effect on the pharmacokinetics of methylphenidate since less than 1% of a radiolabeled dose is excreted in the urine as unchanged compound, and the major metabolite (ritalinic acid), has little or no pharmacologic activity. Patients with Hepatic Impairment Methylphenidate hydrochloride tablets have not been studied in patients with hepatic impairment.
Hepatic impairment is expected to have minimal effect on the pharmacokinetics of methylphenidate since it is metabolized primarily to ritalinic acid by nonmicrosomal hydrolytic esterases that are widely distributed throughout the body.
🧬 Pharmacodynamics ▾
12.2Pharmacodynamics Methylphenidate is a racemic mixture comprised of the d- and l-threo enantiomers. The d-threo enantiomer is more pharmacologically active than the l-threo enantiomer. Methylphenidate blocks the reuptake of norepinephrine and dopamine into the presynaptic neuron and increases the release of these monoamines into the extraneuronal space.
Cardiac Electrophysiology A formal QT study has not been conducted in patients taking methylphenidate hydrochloride tablets. The effect of dexmethylphenidate, the pharmacologically active d-enantiomer of methylphenidate hydrochloride tablets, on the QT interval was evaluated in a double-blind, placebo- and open-label active (moxifloxacin)-controlled study following single doses of dexmethlyphenidate XR 40 mg (maximum recommended adult total daily dosage) in 75 healthy volunteers. Electrocardiograms were collected up to 12 hours postdose.
Frederica’s method for heart rate correction was employed to derive the corrected QT interval (QTcF). The maximum mean prolongation of QTcF intervals was less than 5 ms, and the upper limit of the 90% confidence interval was below 10 ms for all time-matched comparisons versus placebo. This was below the threshold of clinical concern and there was no evident exposure response relationship.
🔒 Drug Abuse and Dependence ▾
9 DRUG ABUSE AND DEPENDENCE
9.1Controlled Substance Methylphenidate hydrochloride tablets contain methylphenidate hydrochloride, a Schedule II controlled substance.
9.2Abuse Methylphenidate hydrochloride tablets have a high potential for abuse and misuse which can lead to the development of a substance use disorder, including addiction [see Warnings and Precautions ( 5.1 )] . Methylphenidate hydrochloride tablets can be diverted for non-medical use into illicit channels or distribution. Abuse is the intentional non-therapeutic use of a drug, even once, to achieve a desired psychological or physiological effect.
Misuse is the intentional use, for therapeutic purposes, of a drug by an individual in a way other than prescribed by a healthcare provider or for whom it was not prescribed. Drug addiction is a cluster of behavioral, cognitive, and physiological phenomena that may include a strong desire to take the drug, difficulties in controlling drug use (e.g., continuing drug use despite harmful consequences, giving a higher priority to drug use than other activities and obligations), and possible tolerance or physical dependence.
Misuse and abuse of methylphenidate hydrochloride may cause increased heart rate, respiratory rate, or blood pressure; sweating; dilated pupils; hyperactivity; restlessness; insomnia; decreased appetite; loss of coordination; tremors; flushed skin; vomiting; and/or abdominal pain. Anxiety, psychosis, hostility, aggression, and suicidal or homicidal ideation have also been observed with CNS stimulants abuse and/or misuse. Misuse and abuse of CNS stimulants, including methylphenidate hydrochloride tablets, 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.
9.3Dependence Physical Dependence Methylphenidate hydrochloride tablets may produce physical dependence. Physical dependence is a state that develops as a result of physiological adaptation in response to repeated drug use, manifested by withdrawal signs and symptoms after abrupt discontinuation or a significant dose reduction of a drug. Withdrawal signs and symptoms after abrupt discontinuation or dose reduction following prolonged use of CNS stimulants including methylphenidate hydrochloride tablets include dysphoric mood; depression; fatigue; vivid, unpleasant dreams; insomnia or hypersomnia; increased appetite; and psychomotor retardation or agitation.
Tolerance Methylphenidate hydrochloride tablets may produce tolerance. Tolerance is a physiological state characterized by a reduced response to a drug after repeated administration (i.e., a higher dose of a drug is required to produce the same effect that was once obtained at a lower dose).
🔒 Controlled Substance ▾
9.1Controlled Substance Methylphenidate hydrochloride tablets contain methylphenidate hydrochloride, a Schedule II controlled substance.
🧪 Nonclinical Toxicology ▾
13 NONCLINICAL TOXICOLOGY
13.1Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenesis In a lifetime carcinogenicity study carried out in B6C3F1 mice, methylphenidate caused an increase in hepatocellular adenomas, and in males only, an increase in hepatoblastomas at a daily dose of approximately 60 mg/kg/day. This dose is approximately 2 times the MRHD of 60 mg/day given to children on mg/m 2 basis. Hepatoblastoma is a relatively rare rodent malignant tumor type.
There was no increase in total malignant hepatic tumors. The mouse strain used is sensitive to the development of hepatic tumors and the significance of these results to humans is unknown. Methylphenidate did not cause any increase in tumors in a lifetime carcinogenicity study carried out in F344 rats; the highest dose used was approximately 45 mg/kg/day, which is approximately 4 times the MRHD (children) on a mg/m 2 basis.
In a 24-week carcinogenicity study in the transgenic mouse strain p53+/-, which is sensitive to genotoxic carcinogens, there was no evidence of carcinogenicity. Male and female mice were fed diets containing the same concentration of methylphenidate as in the lifetime carcinogenicity study; the high-dose groups were exposed to 60 to 74 mg/kg/day of methylphenidate. Mutagenesis Methylphenidate was not mutagenic in the in vitro Ames reverse mutation assay, in the in vitro mouse lymphoma cell forward mutation assay, or in the in vitro chromosomal aberration assay using human lymphocytes.
Sister chromatid exchanges and chromosome aberrations were increased, indicative of a weak clastogenic response, in an in vitro assay in cultured Chinese Hamster Ovary cells. Methylphenidate was negative in vivo in males and females in the mouse bone marrow micronucleus assay. Impairment of Fertility No human data on the effect of methylphenidate on fertility are available.
Methylphenidate did not impair fertility in male or female mice that were fed diets containing the drug in an 18-week continuous breeding study. The study was conducted at doses up to 160 mg/kg/day, approximately 10 times the MRHD of 60 mg/day given to adolescents on a mg/m 2 basis.
📄 Carcinogenesis, Mutagenesis, Impairment of Fertility ▾
13.1Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenesis In a lifetime carcinogenicity study carried out in B6C3F1 mice, methylphenidate caused an increase in hepatocellular adenomas, and in males only, an increase in hepatoblastomas at a daily dose of approximately 60 mg/kg/day. This dose is approximately 2 times the MRHD of 60 mg/day given to children on mg/m 2 basis. Hepatoblastoma is a relatively rare rodent malignant tumor type.
There was no increase in total malignant hepatic tumors. The mouse strain used is sensitive to the development of hepatic tumors and the significance of these results to humans is unknown. Methylphenidate did not cause any increase in tumors in a lifetime carcinogenicity study carried out in F344 rats; the highest dose used was approximately 45 mg/kg/day, which is approximately 4 times the MRHD (children) on a mg/m 2 basis.
In a 24-week carcinogenicity study in the transgenic mouse strain p53+/-, which is sensitive to genotoxic carcinogens, there was no evidence of carcinogenicity. Male and female mice were fed diets containing the same concentration of methylphenidate as in the lifetime carcinogenicity study; the high-dose groups were exposed to 60 to 74 mg/kg/day of methylphenidate. Mutagenesis Methylphenidate was not mutagenic in the in vitro Ames reverse mutation assay, in the in vitro mouse lymphoma cell forward mutation assay, or in the in vitro chromosomal aberration assay using human lymphocytes.
Sister chromatid exchanges and chromosome aberrations were increased, indicative of a weak clastogenic response, in an in vitro assay in cultured Chinese Hamster Ovary cells. Methylphenidate was negative in vivo in males and females in the mouse bone marrow micronucleus assay. Impairment of Fertility No human data on the effect of methylphenidate on fertility are available.
Methylphenidate did not impair fertility in male or female mice that were fed diets containing the drug in an 18-week continuous breeding study. The study was conducted at doses up to 160 mg/kg/day, approximately 10 times the MRHD of 60 mg/day given to adolescents on a mg/m 2 basis.
📄 Recent Major Changes ▾
Boxed Warning 10/2023 Dosage and Administration (2.1) 10/2023 Warnings and Precautions (5.1, 5.2, 5.8, 5.9, 5.10) 10/2023 Boxed Warning 10/2023 Dosage and Administration ( 2.1 ) 10/2023 Warnings and Precautions ( 5.1 , 5.2 , 5.8 , 5.9 , 5.10 ) 10/2023
📄 Package Label / Principal Display Panel ▾
PRINCIPAL DISPLAY PANEL - Methylphenidate Hydrochloride Tablet USP (5 mg bottle of 100) NDC 0406- 1142 -01 100 TABLETS Methylphenidate Hydrochloride Tablets USP CII Rx only 5 mg Each tablet contains: Methylphenidate Hydrochloride USP......5 mg PHARMACIST: Dispense the Medication Guide provided separately to each patient. Mallinckrodt™ L0M125 Rev 09/2022 Methylphenidate Hydrochloride Tablet USP (5 mg bottle of 100)
PRINCIPAL DISPLAY PANEL - Methylphenidate Hydrochloride Tablet USP (10 mg bottle of 100) NDC 0406- 1144 -01 100 TABLETS Methylphenidate Hydrochloride Tablets USP CII Rx only 10 mg Each tablet contains: Methylphenidate Hydrochloride USP......10 mg PHARMACIST: Dispense the Medication Guide provided separately to each patient. Mallinckrodt™ L0M127 Rev 09/2022 Methylphenidate Hydrochloride Tablet USP (10 mg bottle of 100)
PRINCIPAL DISPLAY PANEL - Methylphenidate Hydrochloride Tablet USP (20 mg bottle of 100) NDC 0406- 1146 -01 100 TABLETS Methylphenidate Hydrochloride Tablets USP CII Rx only 20 mg Each tablet contains: Methylphenidate Hydrochloride USP......20 mg PHARMACIST: Dispense the Medication Guide provided separately to each patient. Mallinckrodt ™ L0M129 Rev 09/2022 Methylphenidate Hydrochloride Tablet USP (20 mg bottle of 100)