SAFETY AND SIDE EFFECTS

Review Important Safety Information, Boxed Warning, contraindications, precautions, and adverse reactions associated with RELEXXII (methylphenidate hydrochloride extended-release tablets). RELEXXII is indicated for the treatment of ADHD in adults up to age 65 and pediatric patients 6 years and older. RELEXXII is not recommended for use in children under 6 years of age as higher plasma exposure may lead to a higher incidence of adverse reactions.1

BOXED WARNING: Abuse, Misuse, and Addiction

See full Prescribing Information for complete Boxed Warning.

RELEXXII 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 RELEXXII, can result in overdose and death.1

  • Before prescribing RELEXXII, 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 medication.
  • Throughout treatment, reassess each patient's risk and frequently monitor for signs and symptoms of abuse, misuse, and addiction.1

Contraindications

RELEXXII is contraindicated in patients:

  • with a known hypersensitivity to methylphenidate or other components of RELEXXII. Hypersensitivity reactions such as angioedema and anaphylactic reactions have been reported in patients treated with other methylphenidate products.
  • receiving concomitant treatment with monoamine oxidase inhibitors (MAOIs), and also within 14 days following discontinuation of treatment with a MAOI, because of the risk of hypertensive crisis.

Warnings & Precautions

Healthcare providers should review the full Prescribing Information for complete safety information associated with RELEXXII (methylphenidate hydrochloride extended-release tablets).

Abuse, Misuse, and Addiction

RELEXXII 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 may result in overdose and death. Assess each patient's risk prior to prescribing and monitor for signs and symptoms of abuse, misuse, and addiction throughout treatment.1

Risks to Patients with Serious Cardiac Disease

Sudden death has been reported in patients with structural cardiac abnormalities or other serious cardiac disease treated with CNS stimulants at recommended ADHD doses. Avoid use in patients with known structural cardiac abnormalities, cardiomyopathy, serious cardiac arrhythmias, coronary artery disease, or other serious cardiac disease.1

Increased Blood Pressure and Heart Rate

CNS stimulants may increase blood pressure and heart rate. Monitor all patients treated with RELEXXII for hypertension and tachycardia.1

Psychiatric Adverse Reactions

CNS stimulants may exacerbate symptoms of behavior disturbance and thought disorder in patients with preexisting psychotic disorders and may induce manic or mixed episodes in susceptible patients. Screen for risk factors prior to initiation and monitor for the emergence of psychotic or manic symptoms during treatment.1

Priapism

Prolonged and painful erections, sometimes requiring surgical intervention, have been reported with methylphenidate products. Patients who develop priapism should seek immediate medical attention.1

Peripheral Vasculopathy, Including Raynaud’s Phenomenon

CNS stimulants used to treat ADHD are associated with peripheral vasculopathy, including Raynaud’s phenomenon. Monitor patients for digital changes and consider further clinical evaluation when appropriate.1

Long-Term Suppression of Growth in Pediatric Patients

CNS stimulants have been associated with weight loss and slowing of growth rate in pediatric patients. Closely monitor height and weight during treatment. Treatment interruption may be necessary in patients who are not growing or gaining weight as expected.1

Potential for Gastrointestinal Obstruction

Because the RELEXXII tablet is nondeformable and does not appreciably change shape in the gastrointestinal tract, RELEXXII should generally not be administered to patients with preexisting severe gastrointestinal narrowing. RELEXXII should be used only in patients who are able to swallow the tablet whole.1

Acute Angle Closure Glaucoma and Increased Intraocular Pressure

Cases of angle closure glaucoma and increased intraocular pressure have been reported with methylphenidate treatment. Evaluate at-risk patients and monitor those with a history of open-angle glaucoma or elevated intraocular pressure. Prescribe RELEXXII to patients with open-angle glaucoma or abnormally increased IOP only if the benefit of treatment is considered to outweigh the risk.1

Motor and Verbal Tics and Worsening of Tourette’s Syndrome

Methylphenidate products have been associated with the onset or exacerbation of motor and verbal tics and worsening of Tourette’s syndrome. Assess family history and clinically evaluate patients prior to treatment initiation and monitor during therapy.1

Common Adverse Reactions

The safety profile of RELEXXII is based on adequate and well-controlled studies of another formulation of methylphenidate hydrochloride extended-release tablets. The most common adverse reactions varied by patient population.

Pediatric Patients (6–17 Years)

The most common adverse reaction reported in pediatric patients was:

  • Upper abdominal pain1

Additional adverse reactions reported in clinical studies included insomnia, vomiting, dizziness, pyrexia, nasopharyngitis, cough, and oropharyngeal pain.1

Adults

The most common adverse reactions reported in adults (>5%) were:

  • Decreased appetite
  • Headache
  • Dry mouth
  • Nausea
  • Insomnia
  • Anxiety
  • Dizziness
  • Weight decreased
  • Irritability
  • Hyperhidrosis (increased sweating)1

Discontinuations Due to Adverse Reactions of >1%

The most common adverse reactions associated with treatment discontinuation in either pediatric or adult clinical studies were:

  • Anxiety
  • Irritability
  • Insomnia
  • Increased blood pressure1

See full Prescribing Information for complete adverse reaction data, warnings, precautions, and monitoring recommendations.

Drug Interactions

As part of RELEXXII safety monitoring, healthcare providers should review concomitant medications and assess patients for potential drug interactions prior to initiating treatment. RELEXXII is a central nervous system (CNS) stimulant, and certain medications may require additional monitoring or treatment modifications.1

Clinically Important Drug Interactions

Monoamine Oxidase Inhibitors (MAOIs)

RELEXXII is contraindicated in patients receiving treatment with monoamine oxidase inhibitors (MAOIs) or within 14 days of discontinuing MAOI therapy due to the risk of hypertensive crisis.1

Antihypertensive Medications

RELEXXII may decrease the effectiveness of medications used to treat hypertension. Monitor blood pressure and adjust antihypertensive therapy as clinically appropriate.1

Halogenated Anesthetics

Concomitant use of halogenated anesthetics and RELEXXII may increase the risk of sudden increases in blood pressure and heart rate during surgery. Avoid use of RELEXXII on the day of surgery when halogenated anesthetics are planned.1

Risperidone

Changes in the dosage of methylphenidate or risperidone may increase the risk of extrapyramidal symptoms (EPS). Monitor patients for signs and symptoms of EPS when initiating, discontinuing, or adjusting either medication.1

Additional Safety Considerations

Healthcare providers should review the full Prescribing Information for complete methylphenidate safety information, including contraindications, warnings and precautions, adverse reactions, and other ADHD medication warnings associated with RELEXXII.1

References: 1. RELEXXII package insert. Vertical Pharmaceuticals, LLC.

ADHD=attention deficit hyperactivity disorder