Methylphenidatum hydrochloricum

Methylphenidate hydrochloride; methyl 2-phenyl-2-(piperidin-2-yl)acetate hydrochloride (IUPAC, salt form). Base: methylphenidate, C14H19NO2. · Ritalin; Concerta; Methylphenidatum; abbreviations Methylph-h. / Methyl-p-h.

Modern MM

A modern psychostimulant remedy with a sphere of action centred on the central nervous system and the sympathetic/adrenergic state — concentration, mental activity, restlessness, sleep, and the over-stimulated "wired" picture of stimulant excess. Detailed symptomatology rests on two contemporary provings (Gudjons 2001; Chein 2005) plus the drug's known toxicology.

Key symptoms

Indications derive primarily from the drug's toxicological/pharmacological picture (Law of Similars), corroborated by the existence of two modern provings whose full texts are copyrighted. Characteristic spheres (traceable to documented overdose toxicology): disturbances of attention and focus; inner and outer restlessness, agitation, uncontrolled/fidgeting movements; insomnia and disturbed sleep; over-stimulation — a "wired," over-aroused state; appetite loss; with stimulant excess: irritability, confusion, paranoid feelings, stereotypy, tremor, palpitation/tachycardia. Clinically explored as a same-substance (isopathic/tautopathic) remedy in relation to ADHD and the after-effects of stimulant medication. Specific keynote rubrics are NOT invented here.

Worse (aggravation)

Not reliably documented in freely available sources. Toxicologically, stimulant effects intensify with the drug's action (over-stimulation, sleeplessness). No verified proving modalities are reproduced here to avoid fabrication.

Better (amelioration)

Not reliably documented in freely available public sources; omitted to avoid fabrication. Refer to the original Chein and Gudjons proving texts for proven modalities.

Manohar V Nagaiah

Materia Medica of Modern Homeopathic Medicine · 2026

Ritalin; Concerta; Methylphenidatum; abbreviations Methylph-h. / Methyl-p-h.

Source & Nature

METHYLPHENIDATUM HYDROCHLORICUM is the homeopathic preparation of methylphenidate hydrochloride, the hydrochloride salt of the central nervous system stimulant methylphenidate (the prescription drug Ritalin/Concerta). It is a norepinephrine-dopamine reuptake inhibitor and a Schedule II controlled substance. Chemical identity: salt C14H20ClNO2, MW 269.77, PubChem CID 9280, CAS 298-59-9; free base C14H19NO2, MW 233.31, CAS 113-45-1, PubChem CID 4158.

The drug was first synthesized in 1944 by Leandro Panizzon at CIBA and named after his wife "Rita"; it entered medical use in 1955 and is today a mainstay treatment for ADHD and narcolepsy, as well as a recognised drug of abuse.

Continue Modern MM in the app

Classical texts are in the public domain. Educational reference only — not medical advice.