Methylphenidate
Pronunciation: (ri-TAL-in) (meth-il-FEN-i-date).
- Generic name
- methylphenidate
- Brand names
- Metadate ER, Foquest, Medikinet, Quillivant XR, Ritalin, Concerta XL
- Drug class
- Central Nervous System (CNS) Stimulant
Availability and supply rules vary by country
Trade names by country: United States · Canada
Australia: · Full directory
What methylphenidate is and how it works
Uses, formulations, monitoring, and supply rules can differ by patient, product, and country. Follow the exact local product information and professional advice.
Mechanism of action: how methylphenidate works
Methylphenidate blocks the reuptake of norepinephrine and dopamine into presynaptic neurons in the central nervous system, increasing their concentration in the synaptic cleft. This leads to enhanced neurotransmission and improved attention, focus, and impulse control in patients with ADHD. (1)
What methylphenidate is used for
Attention-Deficit/Hyperactivity Disorder (ADHD)
Attention-Deficit/Hyperactivity Disorder (ADHD) (1)
Narcolepsy
Narcolepsy (1)
Attention-Deficit Disorder (ADD)
Attention-Deficit Disorder (ADD) (1)
Before taking methylphenidate
Do not take / not appropriate for
- marked anxiety, tension, agitation, glaucoma, tics or family history of Tourette's syndrome, and use with MAOIs. (Contraindication) (1)
Tell your clinician about
(1)How to take methylphenidate
- General Instructions: Take Ritalin exactly as prescribed by your doctor, usually 1 to 2 times daily. Do not increase your dose or take it more often than directed.. Adult Dosing: For ADHD: Start with 5 mg orally twice daily, before breakfast and lunch. Dosage may be increased in increments of 5–10 mg weekly. Maximum daily dose is typically 60 mg.. Pediatric Dosing: For children aged 6 years and older: Start with 5 mg orally twice daily, before breakfast and lunch. Dosage may be increased by 5–10 mg weekly. Maximum daily dose is usually 60 mg.. Administration: Take with or without food. Swallow tablets whole with water. Do not crush or chew extended-release tablets or capsules.. When To Stop: Do not stop taking Ritalin suddenly without consulting your doctor. Your doctor may gradually reduce your dose to prevent withdrawal symptoms.. Storage: Store at room temperature, away from moisture, heat, and light. Keep out of reach of children.
- This page does not provide a dose calculator. Dosing must follow the prescriber, pharmacist, or product label.
Procedures and treatment changes
Tell the treating team before surgery, procedures, or any medicine change. Do not alter treatment without the responsible clinician. (1)
Missed dose
If you miss a dose, take it as soon as you remember, unless it is late in the day, in which case taking it may cause insomnia — contact your healthcare provider or pharmacist if you are unsure how to adjust your schedule. Do not take an extra dose to catch up.
Overdose
In case of overdose, seek emergency medical help or call your local poison control center. Symptoms may include vomiting, agitation, tremors, muscle twitching, seizures, confusion, hallucinations, sweating, flushing, headache, rapid breathing, and irregular heartbeat. (1)
Side effects
Side effects and their urgency vary; report severe, persistent, or concerning symptoms to a healthcare professional.
Nervousness
Incidence: Reported in the clinician-authored database; frequency not established
Insomnia
Incidence: Reported in the clinician-authored database; frequency not established
Decreased appetite
Incidence: Reported in the clinician-authored database; frequency not established
Headache
Incidence: Reported in the clinician-authored database; frequency not established
Increased blood pressure
Incidence: Reported in the clinician-authored database; frequency not established
Tachycardia
Incidence: Reported in the clinician-authored database; frequency not established
Abdominal pain
Incidence: Reported in the clinician-authored database; frequency not established
Psychotic symptoms
Incidence: Reported in the clinician-authored database; frequency not established
Serious warnings
FDA BOXED WARNING — Abuse and Dependence — serious
Symptoms: FDA BOXED WARNING — Abuse and Dependence: Ritalin 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 Ritalin, can result in overdose and death. Before starting Ritalin, prescribers assess each patient's risk for abuse, misuse, and addiction, and educate patients and families about these risks, proper storage (in a safe, preferably locked place), and proper disposal of any unused drug. Risk is reassessed and patients are monitored throughout treatment for signs of abuse, misuse, and addiction.
Action: Follow the urgency stated and seek prompt or emergency care when indicated. (1)
May increase blood pressure and heart rate — serious
Symptoms: May increase blood pressure and heart rate. Risk of abuse, misuse, and dependence (see FDA boxed warning above). May worsen existing mental health conditions. Can cause serious cardiovascular events in patients with underlying heart problems. Monitor for signs of circulation problems in fingers and toes.
Action: Follow the urgency stated and seek prompt or emergency care when indicated. (1)
Contraindications recorded in the clinician database — serious
Symptoms: Contraindications recorded in the clinician database: Contraindications include marked anxiety, tension, agitation, glaucoma, tics or family history of Tourette's syndrome, and use with MAOIs. Use with caution in patients with a history of substance abuse, cardiovascular disease, hypertension, or psychiatric disorders (psychosis, bipolar disorder, depression).
Action: Follow the urgency stated and seek prompt or emergency care when indicated. (1)
Interactions
| Medicine or test | Effect | Action |
|---|---|---|
| Recorded interactions | Ritalin can interact with monoamine oxidase inhibitors (MAOIs), certain antidepressants, blood pressure medications, anticoagulants, and anticonvulsants. Combining with other stimulants or alcohol increases risk of side effects. Always inform your healthcare provider of all medications and supplements you are taking. | (1) |
Pregnancy, breastfeeding, kidney/liver function, age
Pregnancy
There is a pregnancy exposure registry that monitors outcomes in women exposed to ADHD medications, including Ritalin, during pregnancy (National Pregnancy Registry for ADHD Medications, 1-866-961-2388). Published studies and postmarketing reports have not identified a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes, though there may be risks to the fetus from CNS stimulant use generally; animal studies at oral doses given to pregnant rats and rabbits showed no effects on morphological development. Discuss any pregnancy or plans for pregnancy with your prescriber. (1)
Breastfeeding
Limited published data (milk sampling from 7 mothers) found methylphenidate present in human milk, giving infant doses of about 0.16%-0.7% of the maternal weight-adjusted dose (milk/plasma ratio 1.1-2.7). No adverse effects on breastfed infants or on milk production have been reported, though long-term neurodevelopmental effects of stimulant exposure through breast milk are unknown. Discuss breastfeeding with your prescriber, who can weigh the benefits of breastfeeding against your clinical need for Ritalin. (1)
Children
Frequency: Dosing frequency is typically 2 to 3 times daily.. Weight Based: Not established for pediatric use under 6 years; for children 6 years and older, initial dose is 5 mg orally twice daily, with potential increases of 5 mg weekly.. Max Daily Dose: 60 mg. Max Single Dose: 60 mg. Age Restrictions: Not recommended for pediatric use under 6 years; safety not established in children under 6 years. (1)
Renal_impairment
Ritalin has not been formally studied in patients with renal or hepatic impairment. Renal impairment is expected to have minimal effect on methylphenidate's pharmacokinetics, since less than 1% of a dose is excreted unchanged in urine and its main metabolite (ritalinic acid) has little or no pharmacologic activity. Hepatic impairment is also expected to have minimal effect, since methylphenidate is metabolized mainly by hydrolytic esterases distributed throughout the body rather than by liver enzymes specifically. No specific dose-adjustment table exists for either; renal or hepatic status should still be assessed by the prescriber. (1)
Hepatic_impairment
Ritalin has not been formally studied in patients with renal or hepatic impairment. Renal impairment is expected to have minimal effect on methylphenidate's pharmacokinetics, since less than 1% of a dose is excreted unchanged in urine and its main metabolite (ritalinic acid) has little or no pharmacologic activity. Hepatic impairment is also expected to have minimal effect, since methylphenidate is metabolized mainly by hydrolytic esterases distributed throughout the body rather than by liver enzymes specifically. No specific dose-adjustment table exists for either; renal or hepatic status should still be assessed by the prescriber. (1)
Monitoring
(1)Storage
Store at 20-25°C (68-77°F); brief excursions between 15-30°C (59-86°F) are permitted. Protect from light. Dispense and keep in a tight, light-resistant container. Because of its abuse potential, store Ritalin in a safe place, preferably locked, out of reach of others, and dispose of any unused medicine through a DEA-authorized medicine take-back program.
Study the drug class: CNS stimulants and ADHD agents
Professional information
Clinician-facing context only. This section does not replace current product labeling.
General
Indication: Attention-Deficit/Hyperactivity Disorder (ADHD)
Dose summary: Initial dose of 10 mg orally twice daily, with adjustments made in increments of 5 to 10 mg weekly.
Renal context: Ritalin has not been formally studied in renally-impaired patients. Renal impairment is expected to have minimal effect on methylphenidate's pharmacokinetics, since less than 1% of a radiolabeled dose is excreted unchanged in urine, and its major metabolite (ritalinic acid) has little or no pharmacologic activity. (1)
Hepatic guidance
Ritalin has not been formally studied in patients with hepatic impairment. Hepatic impairment is expected to have minimal effect on methylphenidate's pharmacokinetics, since it is metabolized primarily to ritalinic acid by nonmicrosomal hydrolytic esterases that are widely distributed throughout the body, rather than mainly by liver enzymes.
Frequently asked questions
How long does it take for Ritalin to start working?
Ritalin usually begins to work within 20 to 60 minutes after taking a dose. The effects of immediate-release tablets last about 3 to 4 hours, while extended-release forms last longer.
Can Ritalin be used in adults with ADHD?
Yes, Ritalin is approved for use in adults with ADHD. Dosage and monitoring may differ from pediatric patients.
Is Ritalin addictive?
Ritalin has the potential for abuse, misuse, and dependence, especially if not taken as prescribed. It is a controlled substance.
Can I drink coffee or caffeinated drinks while taking Ritalin?
Caffeine may increase stimulant side effects such as nervousness or insomnia. Limit caffeine intake and discuss with your doctor.
What should I do if I experience chest pain or palpitations while taking Ritalin?
Seek immediate medical attention if you experience chest pain, palpitations, or fainting; let the clinician you see advise on whether to continue or stop Ritalin.
Can Ritalin affect growth in children?
Ritalin may slow growth in some children. Doctors monitor height and weight regularly during treatment.
Is it safe to take Ritalin during pregnancy or breastfeeding?
Ritalin should only be used during pregnancy or breastfeeding if clearly needed and prescribed by your doctor. Discuss risks and benefits with your healthcare provider.
What happens if I take too much Ritalin (methylphenidate)?
Taking too much Ritalin (methylphenidate) can lead to symptoms such as agitation, tremors, muscle twitching, rapid breathing, confusion, hallucinations, and panic. Severe overdose may result in seizures, coma, and life-threatening cardiovascular events. If an overdose is suspected, seek immediate emergency medical attention or call poison control. Do not induce vomiting unless instructed by a medical professional.
Can I drink alcohol while taking Ritalin (methylphenidate)?
It is generally advised to avoid alcohol consumption while taking Ritalin (methylphenidate). Alcohol can intensify the side effects of CNS stimulants, such as dizziness, drowsiness, and impaired judgment. Combining them may also mask the effects of alcohol, leading to overconsumption, or increase the risk of cardiovascular problems. Always discuss alcohol use with your healthcare provider.
Is Ritalin (methylphenidate) safe during pregnancy?
Ritalin (methylphenidate) is categorized as a Pregnancy Category C medication. This means that animal reproduction studies have shown an adverse effect on the fetus, but there are no adequate and well-controlled studies in humans. Therefore, it should only be used during pregnancy if the potential benefit justifies the potential risk to the fetus. Always consult your healthcare provider to discuss the risks and benefits if you are pregnant or planning to become pregnant.
What is the mechanism of action of methylphenidate?
Methylphenidate blocks the reuptake of norepinephrine and dopamine into presynaptic neurons in the central nervous system, increasing their concentration in the synaptic cleft. This leads to enhanced neurotransmission and improved attention, focus, and impulse control in patients with ADHD. (1)
What is the generic name of Methylphenidate?
The generic name is methylphenidate. It is sold under brand names including Metadate ER, Foquest, Medikinet, Quillivant XR, Ritalin, Concerta XL.
What class of drug is methylphenidate?
Methylphenidate is classed as: Central Nervous System (CNS) Stimulant.
References
- Ritalin (Methylphenidate) for ADHD & Narcolepsy — Prescribing InformationDailyMed (U.S. National Library of Medicine) · United States · accessed 2026-08-03 · source 1
- METHYLPHENIDATE HYDROCHLORIDE TABLET, EXTENDED RELEASE [GRANULES PHARMACEUTICALS INC.] — US prescribing information (DailyMed SPL)U.S. National Library of Medicine (DailyMed) · US · accessed 2026-08-14 · source 2
- Methylphenidate — patient drug information (MedlinePlus)U.S. National Library of Medicine (MedlinePlus) · US · accessed 2026-08-14 · source 3
- Methylphenidate Hydrochloride (LA) — FDA approval record (Drugs@FDA ANDA079031)U.S. Food and Drug Administration · US · accessed 2026-08-14 · source 4
- methylphenidate — RxNorm normalized drug concept (RXCUI 203188)U.S. National Library of Medicine (RxNorm) · US · accessed 2026-08-14 · source 5
Brand names by country
Single-ingredient methylphenidate names are shown separately by country. Product availability, strengths, and supply rules can change; combination products are not included here.
Priority countries
United States
- METADATE CD10 mg, 40 mg, 20 mg, 50 mg, 60 mg, 30 mg · lannett company, llc
- Ritalin5 mg, 20 mg, 10 mg, 30 mg, 40 mg · sandoz inc
- RELEXXII72 mg, 45 mg, 63 mg, 36 mg, 27 mg, 54 mg, 18 mg · vertical pharmaceuticals, llc
- JORNAY PM Extended-Release80 mg, 100 mg, 40 mg, 60 mg, 20 mg · ironshore pharmaceuticals inc.
- Quillivant XR300 mg/60mL, 750 mg50mL, 600 mg20mL, 900 mg80mL · nextwave pharmaceuticals, inc
- CONCERTA36 mg, 27 mg, 18 mg, 54 mg · janssen pharmaceuticals, inc.
- Daytrana10 mg/9h, 30 mg/9h, 15 mg/9h, 20 mg/9h · noven therapeutics, llc
- Methylphenidate Transdermal System82.5 mg/mg, 27.5 mg/mg, 55 mg/mg, 41.3 mg/mg · padagis us llc
- Cotempla XR-ODT8.6 mg, 25.9 mg, 17.3 mg · neos therapeutics brands, llc
- QuilliChew ER20 mg, 30 mg, 40 mg · nextwave pharmaceuticals, inc
Canada
- BIPHENTIN
- CONCERTA
- RITALIN
- RITALIN-SR
- TEVA-METHYLPHENIDATE ER-C
- APO-METHYLPHENIDATE ER
- PMS-METHYLPHENIDATE ER
- APO-METHYLPHENIDATE SR
- SANDOZ METHYLPHENIDATE SR