Dexmethylphenidate 15mg ER Capsules
Overview
What is this medicine?
How to Use This Medicine
To use this medication correctly, follow your doctor's instructions and read all the information provided. Take your medication as directed, with or without food. However, note that taking it with food may delay its effect. To minimize sleep disturbances, take your medication early in the day.
It's essential to swallow the medication whole; do not chew or crush it. If you have difficulty swallowing the medication whole, you can sprinkle its contents onto applesauce. If you choose this method, swallow the mixture immediately without chewing.
Storing and Disposing of Your Medication
Store your medication at room temperature, protected from light and in a dry place. Avoid storing it in a bathroom. Keep your medication in a secure location where children cannot see or access it, and where others cannot reach it. Consider using a locked box or area to ensure its safety. Remember to keep all medications away from pets.
Missing a Dose
If you miss a dose, skip it and resume your regular dosing schedule. Do not take two doses at the same time or take extra doses to make up for the missed one.
Lifestyle & Tips
- Take exactly as prescribed, usually once daily in the morning. Taking it later in the day may cause sleep problems.
- Swallow the capsule whole; do not crush, chew, or divide. If unable to swallow, the capsule may be opened and the entire contents sprinkled on a small amount of applesauce and consumed immediately.
- Avoid alcohol, as it may cause the medication to be released too quickly.
- Inform your doctor about all other medications, supplements, and herbal products you are taking.
- Do not stop taking this medication suddenly without consulting your doctor, as withdrawal symptoms may occur.
Available Forms & Alternatives
Available Strengths:
- Dexmethylphenidate 10mg Tablets
- Dexmethylphenidate 2.5mg Tablets
- Dexmethylphenidate 5mg Tablets
- Dexmethylphenidate 25mg ER Capsules
- Dexmethylphenidate ER 5mg Capsules
- Dexmethylphenidate ER 20mg Capsules
- Dexmethylphenidate ER 10mg Capsules
- Dexmethylphenidate 15mg ER Capsules
- Dexmethylphenidate 30mg ER Capsules
- Dexmethylphenidate 35mg ER Capsules
- Dexmethylphenidate 40mg ER Capsules
Dosing & Administration
Adult Dosing
Condition-Specific Dosing:
Pediatric Dosing
Dose Adjustments
Renal Impairment:
Hepatic Impairment:
Pharmacology
Mechanism of Action
Pharmacokinetics
Absorption:
Distribution:
Elimination:
Pharmacodynamics
Safety & Warnings
BLACK BOX WARNING
Side Effects
Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you notice any of the following symptoms, contact your doctor immediately or seek emergency medical attention:
Signs of an allergic reaction, such as:
+ Rash
+ Hives
+ Itching
+ Red, swollen, blistered, or peeling skin (with or without fever)
+ Wheezing
+ Tightness in the chest or throat
+ Difficulty breathing, swallowing, or talking
+ Unusual hoarseness
+ Swelling of the mouth, face, lips, tongue, or throat
Signs of liver problems, including:
+ Dark urine
+ Fatigue
+ Decreased appetite
+ Upset stomach or stomach pain
+ Light-colored stools
+ Vomiting
+ Yellow skin or eyes
Rapid heartbeat
Joint pain
Purple patches on the skin or mouth
Changes in vision or eye pain, swelling, or redness
Seizures
Shakiness
Difficulty controlling body movements
Trouble controlling sounds, such as humming, throat clearing, yelling, or making loud noises
Excessive sweating
Restlessness
Changes in skin color (hands, feet, or other areas), which may turn pale, blue, gray, purple, or red
Numbness, pain, tingling, or cold sensation in the hands or feet
Sores or wounds on the fingers or toes
Difficulty urinating or changes in urine output
Muscle pain or weakness, dark urine, or difficulty passing urine
Changes in sex drive
Erectile Dysfunction Warning
If you experience a painful erection (priapism) or an erection that lasts longer than 4 hours, seek medical attention immediately. This can occur even when you are not engaging in sexual activity. If left untreated, it may lead to permanent sexual dysfunction.
Cardiovascular Warning
Sudden deaths have occurred in people with pre-existing heart problems or heart defects. Inform your doctor if you have any heart condition or defect, or if a family member has a history of abnormal heart rhythms or sudden death. Seek medical help immediately if you experience:
Chest pain
Abnormal heartbeat
Shortness of breath
Severe dizziness or fainting
Mental Health Warning
New or worsening behavioral and mood changes, such as changes in thinking, anger, and hallucinations, have been reported with this medication. Inform your doctor if you or a family member have a history of mental health conditions, such as depression or bipolar disorder, or if a family member has committed suicide. Seek medical help immediately if you experience:
Hallucinations
Changes in behavior
Signs of mood changes, such as depression, suicidal thoughts, nervousness, emotional instability, abnormal thinking, anxiety, or loss of interest in life
Serotonin Syndrome Warning
A potentially life-threatening condition called serotonin syndrome may occur if you take this medication with certain other drugs. Seek medical help immediately if you experience:
Agitation
Changes in balance
Confusion
Hallucinations
Fever
Rapid or abnormal heartbeat
Flushing
Muscle twitching or stiffness
Seizures
Shivering or shaking
Excessive sweating
Severe diarrhea, nausea, or vomiting
Severe headache
Other Side Effects
While many people may not experience side effects or may only have mild side effects, it is essential to be aware of the following:
Dizziness or headache
Drowsiness
Feeling nervous or excitable
Stomach pain or heartburn
Weight loss
Decreased appetite
Difficulty sleeping
Dry mouth
Upset stomach or vomiting
Throat pain
This is not an exhaustive list of potential side effects. If you have concerns or questions, consult your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
Seek Immediate Medical Attention If You Experience:
- Chest pain, shortness of breath, or fainting (seek immediate medical attention)
- New or worsening aggression, hostility, or agitation
- New psychotic symptoms (e.g., hearing voices, believing things that are not true)
- New manic symptoms (e.g., extreme energy, racing thoughts)
- Unexplained numbness, pain, skin color change, or sensitivity to temperature in fingers or toes
- Unexplained tics (uncontrolled repetitive movements or sounds)
- Blurred vision or other vision changes
- Prolonged or painful erection (priapism)
Before Using This Medicine
It is essential to inform your doctor about the following:
Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Describe the allergic reaction you experienced, including the symptoms that occurred.
A family history of certain health conditions, including:
+ Blood vessel disease
+ High blood pressure
+ Heart structure problems or other heart-related issues
+ Tourette's syndrome or tics
Your medical history, particularly if you have:
+ Glaucoma
+ Agitation
+ Anxiety
+ Overactive thyroid
+ A history of stroke
Recent use (within the last 14 days) of specific medications for depression or Parkinson's disease, such as:
+ Isocarboxazid
+ Phenelzine
+ Tranylcypromine
+ Selegiline
+ Rasagiline (note: combining these medications can lead to very high blood pressure)
* Current use of certain medications, including:
+ Linezolid
+ Methylene blue
This list is not exhaustive, and it is crucial to discuss all your medications (prescription, over-the-counter, natural products, and vitamins) and health problems with your doctor and pharmacist. They will help determine whether it is safe to take this medication in conjunction with your other treatments and health conditions. Never start, stop, or adjust the dosage of any medication without consulting your doctor first.
Precautions & Cautions
Before operating a vehicle or engaging in activities that require your full attention, wait until you understand how this medication affects you. This is crucial to prevent accidents and ensure your safety.
Long-term use or high doses of this medication may lead to tolerance, reducing its effectiveness. If you notice that the medication is no longer working as well as it should, contact your doctor. Do not exceed the prescribed dose, as this can lead to adverse effects.
Your doctor may recommend heart tests before starting this medication, especially if you have pre-existing heart conditions. If you have any questions or concerns, discuss them with your doctor.
This medication may increase the risk of seizures, particularly in individuals with a history of seizure disorders. Consult your doctor to determine if you are at a higher risk of seizures while taking this medication.
There is a potential risk of high blood pressure associated with this medication. Monitor your blood pressure and heart rate as directed by your doctor, and seek immediate medical attention if you experience severe headaches, dizziness, fainting, or changes in vision.
To minimize potential side effects, limit your consumption of caffeine (found in tea, coffee, cola, and chocolate) while taking this medication, as it may cause nervousness, shakiness, and rapid heartbeat. Additionally, avoid consuming alcohol during treatment.
If you have high blood pressure, consult your doctor before using over-the-counter (OTC) products that may exacerbate the condition, such as cough and cold medications, diet pills, stimulants, non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen, and certain natural products or aids.
This medication may cause changes in behavior and mood, including altered thinking, anger, and hallucinations. If you or a family member have a history of mental health issues, such as depression or bipolar disorder, or if a family member has attempted suicide, inform your doctor. Seek immediate medical attention if you experience hallucinations, changes in behavior, or signs of mood changes, including depression, suicidal thoughts, nervousness, emotional instability, abnormal thinking, anxiety, or loss of interest in life.
In some cases, this medication may affect growth in children and adolescents. Regular growth checks may be necessary, so discuss this with your doctor.
If you are pregnant, plan to become pregnant, or are breastfeeding, consult your doctor to weigh the benefits and risks of this medication for both you and your baby.
Overdose Information
Overdose Symptoms:
- Vomiting
- Agitation
- Tremors
- Hyperreflexia
- Muscle twitching
- Convulsions (may be followed by coma)
- Euphoria
- Confusion
- Hallucinations
- Delirium
- Sweating
- Flushing
- Headache
- Hyperpyrexia (very high fever)
- Tachycardia (fast heart rate)
- Palpitations
- Cardiac arrhythmias
- Hypertension (high blood pressure)
- Mydriasis (dilated pupils)
- Dry mouth
What to Do:
Call 911 or Poison Control (1-800-222-1222) immediately. Seek emergency medical attention.
Drug Interactions
Contraindicated Interactions
- Monoamine Oxidase Inhibitors (MAOIs) or within 14 days of discontinuing an MAOI (risk of hypertensive crisis).
Major Interactions
- Vasopressor agents (e.g., phenylephrine, epinephrine): May potentiate pressor effects.
- Halogenated Anesthetics: Risk of sudden blood pressure and heart rate increases during surgery.
- Anticoagulants (e.g., coumarin): May decrease their metabolism, increasing bleeding risk.
- Anticonvulsants (e.g., phenobarbital, phenytoin, primidone): May inhibit their metabolism, increasing plasma concentrations.
- Antidepressants (e.g., tricyclic antidepressants, SSRIs): May inhibit their metabolism, increasing plasma concentrations.
Moderate Interactions
- Alcohol: May lead to dose dumping of extended-release formulations.
- Antihypertensive drugs: May reduce the effectiveness of these drugs.
Monitoring
Baseline Monitoring
Rationale: To identify pre-existing cardiac conditions or risk factors for adverse cardiovascular events.
Timing: Prior to initiation of therapy
Rationale: To assess for pre-existing psychiatric conditions that may be exacerbated.
Timing: Prior to initiation of therapy
Rationale: To establish baseline for growth monitoring.
Timing: Prior to initiation of therapy
Routine Monitoring
Frequency: Regularly (e.g., at each visit or every 3-6 months)
Target: Within normal limits for age/baseline
Action Threshold: Significant or sustained increases (e.g., >10-20 mmHg systolic/diastolic, >10-20 bpm heart rate) warrant investigation and potential dose adjustment or discontinuation.
Frequency: Every 3-6 months
Target: Normal growth trajectory
Action Threshold: Significant growth deceleration or weight loss warrants investigation and potential drug holiday or alternative therapy.
Frequency: Regularly (e.g., at each visit)
Target: Absence of new or worsening symptoms
Action Threshold: Emergence or worsening of severe psychiatric symptoms warrants immediate evaluation and potential discontinuation.
Symptom Monitoring
- Chest pain
- Shortness of breath
- Syncope
- Palpitations
- New or worsening aggression
- Hallucinations
- Delusional thinking
- Mania
- Agitation
- Anxiety
- Depression
- Motor tics
- Verbal tics
- Unexplained weight loss
- Growth deceleration
Special Patient Groups
Pregnancy
There are no adequate and well-controlled studies of dexmethylphenidate in pregnant women. Data from a pregnancy registry for methylphenidate (the racemic mixture) did not show an increased risk of major congenital malformations. However, there are risks to the mother and fetus associated with untreated ADHD in pregnancy. Use during pregnancy should only be considered if the potential benefit justifies the potential risk to the fetus.
Trimester-Specific Risks:
Lactation
Dexmethylphenidate and/or its metabolites are excreted into human milk. There are no data on the effects of dexmethylphenidate on the breastfed infant or on milk production. The developmental and health benefits of breastfeeding should be considered along with the motherβs clinical need for dexmethylphenidate and any potential adverse effects on the breastfed infant from dexmethylphenidate or from the underlying maternal condition. Monitor breastfed infants for agitation, insomnia, anorexia, or reduced weight gain.
Pediatric Use
Safety and efficacy have been established in pediatric patients 6 to 17 years of age. Long-term effects on growth (weight and height) should be monitored. Psychiatric adverse events (e.g., psychosis, mania, aggression) can occur. Risk of tics or exacerbation of pre-existing tics.
Geriatric Use
Safety and efficacy have not been established in geriatric patients. Use with caution in elderly patients, generally starting with lower doses and titrating slowly, due to potential for increased sensitivity to adverse effects, especially cardiovascular effects.
Clinical Information
Clinical Pearls
- Dexmethylphenidate ER provides a biphasic release, designed to provide an initial effect followed by a sustained effect throughout the day, typically lasting 8-10 hours.
- It is the d-isomer of methylphenidate, which is considered the more pharmacologically active enantiomer, allowing for lower doses compared to racemic methylphenidate.
- Capsules can be opened and sprinkled on applesauce for patients who have difficulty swallowing whole capsules, but the entire contents must be consumed immediately.
- Patients should be advised to avoid taking the medication in the late afternoon or evening to prevent sleep disturbances.
- Regular monitoring of blood pressure, heart rate, and growth (in children) is crucial during therapy.
Alternative Therapies
- Other methylphenidate formulations (e.g., methylphenidate ER, methylphenidate IR, methylphenidate transdermal system)
- Amphetamine-based stimulants (e.g., mixed amphetamine salts, lisdexamfetamine)
- Non-stimulant medications (e.g., atomoxetine, guanfacine extended-release, clonidine extended-release)
- Behavioral therapy and psychotherapy for ADHD