Methylphenidate

1 INDICATIONS AND USAGE Methylphenidate transdermal system is indicated for the treatment of Attention Deficit Hyperactivity Disorder (ADHD) in pediatric patients 6 to 17 years of age. Limitations of Us e The use of methylphenidate transdermal system is not recommended in pediatric patients younger than 6 years of age because they had higher plasma exposure and a higher incidence of adverse reactions (e.g., weight loss) than patients 6 years and older at the same dosage [see Warnings and Precautions (5.8) , Use in Specific Populations (8.4) ] . Methylphenidate transdermal system is a central nervous system (CNS) stimulant indicated for the treatment of Attention Deficit Hyperactivity Disorder (ADHD) in pediatric patients 6 to 17 years of age. ( 1 ) Limitations of Use The use of methylphenidate transdermal system is not recommended in pediatric patients younger than 6 years of age because they had higher plasma exposure and a higher incidence of adverse reactions (e.g., weight loss) than patients 6 years and older at the same dosage ( 5.8 , 8.4 ).

2 DOSAGE AND ADMINISTRATION • The recommended starting dose for patients new to or converting from another formulation of methylphenidate is 10 mg. ( 2.2 ) • Methylphenidate transdermal system should be applied to the hip area (using alternating sites) 2 hours before an effect is needed and should be removed 9 hours after application. Methylphenidate transdermal system may be removed earlier than 9 hours if a shorter duration of effect is desired or late day side effects appear. ( 2.2 , 2.3 ) • Dosage should be titrated to effect. Dose titration, final dosage, and wear time should be individualized according to the needs and response of the patient. ( 2.2 ) 2.1 Pretreatment Screening Prior to treating patients with methylphenidate transdermal system, 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 transdermal system [see Warnings and Precautions (5.15) ] . 2.2 Recommended Dosage It is recommended that methylphenidate transdermal system be applied to the hip area 2 hours before an effect is needed and should be removed 9 hours after application. Dosage should be titrated to effect. The recommended dose titration schedule is shown in the table below. Dose titration, final dosage, and wear time should be individualized according to the needs and response of the patient. Table 1 Methylphenidate Transdermal System - Recommended Titration Schedule (Patients New to Methylphenidate) Upward Titration, if Response is Not Maximized Week 1 Week 2 Week 3 Week 4 Transdermal System Size 9.6 cm 2 14.4 cm 2 19.2 cm 2 28.8 cm 2 Nominal Delivered Dose Nominal in vivo delivery rate in children and adolescents when applied to the hip, based on a 9-hour wear period. (mg/9 hours) 10 mg 15 mg 20 mg 30 mg Delivery Rate (1.1 mg/hr) (1.6 mg/hr) (2.2 mg/hr) (3.3 mg/hr) Patients converting from another formulation of methylphenidate should follow the above titration schedule due to differences in bioavailability of methylphenidate transdermal system compared to other products. 2.3 Application The parent or caregiver should be encouraged to use the administration chart included with each carton of methylphenidate transdermal system to monitor application and removal time, and method of disposal. It is recommended that parents or caregivers apply and remove the transdermal system for children; responsible adolescents may apply or remove the transdermal system themselves if appropriate. If a transdermal system was removed without the parent or caregiver's knowledge, or if a transdermal system is missing from the carton, the parent or caregiver should be encouraged to ask the child when and how the transdermal system was removed. The Medication Guide includes a timetable to calculate when to remove methylphenidate transdermal system, based on the 9-hour application time. The adhesive side of methylphenidate transdermal system should be placed on a clean, dry area of the hip. The area selected should not be oily, damaged, or irritated. Apply methylphenidate transdermal system to the hip area avoiding the waistline, since clothing may cause the transdermal system to rub off. When applying the transdermal system the next morning, place on the opposite hip at a new site if possible. If patients or caregivers experience difficulty separating the transdermal system from the release liner or observe transfer of adhesive to the liner, tearing and/or other damage to the transdermal system during removal from the liner, the transdermal system should be discarded and a new transdermal system should be applied. Patients or caregivers should inspect the release liner to ensure that no adhesive containing medication has transferred to the liner. If adhesive transfer has occurred, the transderm…

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 transdermal system, screen patients for risk factors for developing a manic episode. If new psychotic or manic symptoms occur, consider discontinuing methylphenidate transdermal system. ( 5.4 ) • Seizures: Stimulants may lower the convulsive threshold. Discontinue in the presence of seizures. ( 5.5 ) • Priapism: If abnormally sustained or frequent and painful erections occur, patients should seek immediate medical attention. ( 5.6 ) • Peripheral Vasculopathy, including Raynaud’s phenomenon: Careful observation for digital changes is necessary during methylphenidate transdermal system treatment. Further clinical evaluation (e.g., rheumatology referral) may be appropriate for patients who develop signs or symptoms of peripheral vasculopathy. ( 5.7 ) • Long-Term Suppression of Growth in Pediatric Patients: Closely monitor (height and weight) in pediatric patients. Pediatric patients not growing or gaining height or weight as expected may need to have their treatment interrupted. ( 5.8 ) • Chemical Leukoderma: Methylphenidate transdermal system use may result in a persistent loss of skin pigmentation at and around the application site. Loss of pigmentation, in some cases, has been reported at other sites distant from the application site. Monitor for signs of skin depigmentation. Discontinue methylphenidate transdermal system if it occurs. ( 5.9 ) • Contact Sensitization: Use of methylphenidate transdermal system may lead to contact sensitization. Treatment should be discontinued if contact sensitization is suspected. Erythema is commonly seen with use of methylphenidate transdermal system and is not by itself an indication of sensitization. However, contact sensitization should be suspected if erythema is accompanied by evidence of a more intense local reaction (edema, papules, vesicles) that does not significantly improve within 48 hours or spreads beyond the transdermal system site. ( 5.10 ) • External Heat: Patients should be advised to avoid exposing the methylphenidate transdermal system application site to direct external heat sources. When heat is applied to methylphenidate transdermal system after application, both the rate and extent of absorption are significantly increased. ( 5.11 ) • Hematologic monitoring: Periodic CBC, differential, and platelet counts are advised during prolonged therapy. ( 5.12 ) • Acute Angle Closure Glaucoma: Methylphenidate transdermal system-treated patients considered at risk for acute angle closure glaucoma (e.g., patients with significant hyperopia) should be evaluated by an ophthalmologist. ( 5.13 ) • Increased Intraocular Pressure (IOP) and Glaucoma: Prescribe methylphenidate transdermal system 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. ( 5.14 ) • Motor and Verbal Tics and Worsening of Tourette’s Syndrome: Before initiating methylphenidate transdermal system, 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. ( 5.15 ) 5.1 Abuse, Misuse, and Addiction Methylphenidate transdermal system has a high potential for abuse and misuse. The use of methylphenidate transdermal system exposes individuals to the risks of abuse and misuse, which can lead to the development of a substance use disorder, including addiction. Methylphenidate can be diverted fo…

4 CONTRAINDICATIONS • Known hypersensitivity to methylphenidate ( 4.1 ) • Patients currently using or within 2 weeks of using an MAO inhibitor ( 4.2 ) 4.1 Hypersensitivity to Methylphenidate Methylphenidate transdermal system is contraindicated in patients known to be hypersensitive to methylphenidate or other components of the product (fluoropolymer-coated polyester, hydrophobic colloidal silica, mineral oil, polyester/ethylene vinyl acetate laminate film backing, polyisobutylene adhesive and white ink). The white ink contains acrylic polymers, polyethylene wax, polytetrafluoroethylene, polyvinylpyrrolidone, sodium dioctyl sulfosuccinate and titanium dioxide [see Description (11) ] . 4.2 Monoamine Oxidase Inhibitors Methylphenidate transdermal system is contraindicated during treatment with monoamine oxidase inhibitors, and within a minimum of 14 days following discontinuation of treatment with a monoamine oxidase inhibitor (hypertensive crises may result).

7 DRUG INTERACTIONS • Antihypertensive Drugs: Monitor blood pressure. Adjust dosage of antihypertensive drug as needed. ( 7.2 ) 7.1 Monoamine Oxidase Inhibitors (MAOI) Concomitant use of MAOIs and CNS stimulants, including methylphenidate transdermal system, can cause hypertensive crisis. Potential outcomes include death, stroke, myocardial infarction, aortic dissection, ophthalmological complications, eclampsia, pulmonary edema, and renal failure [see Contraindications (4.2) ] . Concomitant use of methylphenidate transdermal system with MAOIs or within 14 days after discontinuing MAOI treatment is contraindicated. 7.2 Antihypertensive Drugs Methylphenidate may decrease the effectiveness of drugs used to treat hypertension. Monitor blood pressure and adjust the dosage of the antihypertensive drug as needed [see Warnings and Precautions (5.2) ] . 7.3 Coumarin Anticoagulants, Antidepressants, and Selective Serotonin Reuptake Inhibitors Human pharmacologic studies have shown that methylphenidate may inhibit the metabolism of coumarin anticoagulants, anticonvulsants (e.g., phenobarbital, phenytoin, primidone), and some tricyclic drugs (e.g., imipramine, clomipramine, desipramine) and selective serotonin reuptake inhibitors. Downward dose adjustments of these drugs may be required when given concomitantly with methylphenidate. It may be necessary to adjust the dosage and monitor plasma drug concentrations (or, in the case of coumarin, coagulation times), when initiating or discontinuing methylphenidate. 7.4 Halogenated Anesthetics Concomitant use of halogenated anesthetics and methylphenidate may increase the risk of sudden blood pressure and heart rate increase during surgery. Avoid use of methylphenidate transdermal system in patients being treated with anesthetics on the day of surgery. 7.5 Risperidone Combined use of methylphenidate with risperidone when there is a change in dosage, whether an increase or decrease, of either or both medications, may increase the risk of extrapyramidal symptoms (EPS). Monitor for signs of EPS.

8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to ADHD medications, including methylphenidate transdermal system, during pregnancy. Healthcare providers are encouraged to register patients by calling the National Pregnancy Registry for ADHD Medications at 1-866-961-2388 or visit https://womensmentalhealth.org/adhd-medications/. Risk Summary Published studies and post-marketing reports on methylphenidate use during pregnancy are insufficient to identify a drug-associated risk of major birth defects, miscarriage or adverse maternal or fetal outcomes. There are risks to the fetus associated with the use of CNS stimulants 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. However, spina bifida was observed in rabbits when given oral doses of 200 mg/kg/day. When methylphenidate was administered orally to rats throughout pregnancy and lactation, offspring growth and survival were decreased at maternally toxic doses (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 clinical recognized pregnancies is 2-4% and 15-20%, respectively. Clinical Considerations Fetal/Neonatal adverse reactions CNS stimulants, such as methylphenidate transdermal system, 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 Animal reproduction toxicity studies with transdermal methylphenidate have not been performed. In embryo-fetal development studies conducted in rats and rabbits, methylphenidate was administered orally to pregnant animals during the period of organogenesis, at doses up to 100 and 200 mg/kg/day, respectively. No evidence of morphological development effects was found in either of the species; however, increased incidences of fetal skeletal variations were observed in rats at 60 mg/kg or greater and an increase in fetal visceral variations was seen in rabbits at the highest dose. In a previous study, methylphenidate was shown to have malformations (increased incidence of fetal spina bifida) in rabbits when given oral doses of 200 mg/kg/day. When methylphenidate was administered orally to rats throughout pregnancy and lactation at doses of up to 60 mg/kg/day, offspring growth and survival were decreased at maternally toxic doses. In a study in which oral methylphenidate was given to rats throughout pregnancy and lactation at doses up to 60 mg/kg/day, offspring weights and survival were decreased at 40 mg/kg/day and above; these doses caused some maternal toxicity.

6 ADVERSE REACTIONS Detailed information on serious and adverse reactions of particular importance is provided in the Boxed Warning and Warnings and Precautions (5) sections: • Abuse, Misuse, and Addiction [see Boxed Warning ] • Hypersensitivity to Methylphenidate [see Contraindications (4.1) ] • Monoamine Oxidase Inhibitors [see Contraindications (4.2) and 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) ] • Seizures [see Warnings and Precautions (5.5) ] • Priapism [see Warnings and Precautions (5.6) ] • Peripheral Vasculopathy [see Warnings and Precautions (5.7) ] • Long-Term Suppression of Growth in Pediatric Patients [see Warnings and Precautions (5.8) ] • Chemical Leukoderma [see Warnings and Precautions (5.9) ] • Contact Sensitization [see Warnings and Precautions (5.10) ] • External Heat [see Warnings and Precautions (5.11) ] • Hematologic Monitoring [see Warnings and Precautions (5.12) ] • Acute Angle Closure Glaucoma [see Warnings and Precautions (5.13) ] • Increased Intraocular Pressure and Glaucoma [see Warnings and Precautions (5.14) ] • Motor and Verbal Tics, and Worsening of Tourette’s Syndrome [see Warnings and Precautions (5.15) ] • Pediatric patients (ages 6 to 12 years): The most commonly (≥ 5% and twice the rate of placebo) reported adverse reactions in pediatric patients ages 6 to 12 years included appetite decreased, insomnia, nausea, vomiting, weight decreased, tic, affect lability, and anorexia. ( 6.1 ) • Pediatric patients (ages 13 to 17 years): The most commonly (≥ 5% and twice the rate of placebo) reported adverse reactions in pediatric patients ages 13 to 17 years included appetite decreased, nausea, insomnia, weight decreased, dizziness, abdominal pain, and anorexia. The majority of subjects in these trials had erythema at the application site. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Mylan at 1-877-446-3679 (1-877-4-INFO-RX) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reactions rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The most commonly reported (frequency ≥ 5% and twice the rate of placebo) adverse reactions in a controlled trial in children aged 6-12 included appetite decreased, insomnia, nausea, vomiting, weight decreased, tic, affect lability, and anorexia. The most commonly reported (frequency ≥ 5% and twice the rate of placebo) adverse reactions in a controlled trial in adolescents aged 13-17 were appetite decreased, nausea, insomnia, weight decreased, dizziness, abdominal pain, and anorexia [see Adverse Reactions (6.1) ] . The most common (≥ 2% of subjects) adverse reaction associated with discontinuations in double-blind clinical trials in children or adolescents was application site reactions [see Adverse Reactions (6.1) ] . The overall methylphenidate transdermal system development program included exposure to methylphenidate transdermal system in a total of 2,152 participants in clinical trials, including 1,529 children aged 6-12, 223 adolescents aged 13-17, and 400 adults. The 1,752 child and adolescent subjects aged 6-17 years were evaluated in 10 controlled clinical studies, 7 open-label clinical studies, and 5 clinical pharmacology studies. In a combined studies pool of children using methylphenidate transdermal system with a wear time of 9 hours, 212 subjects were exposed for ≥ 6 months and 115 were exposed for ≥ 1 year; 85 adolescents were exposed for ≥ 6 months. Most patients studied were exposed to methylphenidate transdermal system sizes of 12.5 cm 2 , 18.75 cm 2 , 25 cm 2 , or 37.5 cm 2 , with a wear time of 9 …