Methylphenidate hydrochloride

threo-Methyl α-phenyl-α-(2-piperidyl)acetate hydrochloride, Ritalin hydrochloride
Empirical Formula (Hill Notation):
C14H19NO2 · HCl
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

drug control

USDEA Schedule II; Home Office Schedule 2; stupéfiant (France); kontrollierte Droge in Deutschland; regulated under CDSA - not available from Sigma-Aldrich Canada; psicótropo (Spain); Decreto Lei 15/93: Tabela IIB (Portugal)

Featured Industry

Forensics and Toxicology


Johnson & Johnson

SMILES string




InChI key


Gene Information

human ... SLC6A2(6530), SLC6A3(6531)

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Biochem/physiol Actions

CNS stimulant; releases catecholamines; potent inhibitor of dopamine reuptake


Exclamation markHealth hazard

Signal Word


Hazard Statements

Precautionary Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

R Kuczenski et al.
The Journal of pharmacology and experimental therapeutics, 296(3), 876-883 (2001-02-22)
The prescribed use of methylphenidate (Ritalin) in the treatment of attention deficit hyperactivity disorder has risen dramatically in recent years. The relative roles of dopamine, norepinephrine, and serotonin in the therapeutic action of these drugs was assessed by comparing the...
Konstantinos Ioannidis et al.
The International journal of eating disorders, 47(4), 431-436 (2013-12-07)
There is increasing literature suggesting a link between attention-deficit hyperactivity disorder (ADHD) and eating disorders (EDs), especially bulimia nervosa. ADHD is under-diagnosed in girls and children of high intelligence are typically missed. We identified a case of a 23-year-old woman...
Evert J Semeijn et al.
Journal of the American Geriatrics Society, 61(6), 882-887 (2013-05-29)
To increase insight into the effect of attention-deficit/hyperactivity disorder (ADHD) on health in general in older adults. Two-phase sampling side-study. Longitudinal Aging Study Amsterdam (LASA). Two hundred twenty-three randomly selected LASA respondents. Information was collected during home visits on physical...
Eduardo Bruera et al.
Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 31(19), 2421-2427 (2013-05-22)
Cancer-related-fatigue (CRF) is common in advanced cancer. The primary objective of the study was to compare the effects of methylphenidate (MP) with those of placebo (PL) on CRF as measured using the Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) fatigue...
Kleber Santos et al.
Developmental medicine and child neurology, 55(7), 654-660 (2013-03-14)
Difficult-to-treat epilepsies and attention-deficit-hyperactivity disorder (ADHD) often co-occur. Because of concerns about the use of stimulants in children with this comorbidity, the impact of ADHD treatment on seizure frequency and severity is not known. This pilot study evaluated the safety...

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