Wakefulness agentsWakefulness agentAn umbrella category of compounds that increase wakefulness and attentional performance (e.g. classic stimulants and eugeroics).
Modafinil vs Methylphenidate
The table compares the compounds’ key data from their entry pages. Open each compound’s full entry for details. Educational content, not medical advice.
 Modafinil |  Methylphenidate | |
|---|---|---|
| What it is | Wakefulness-promoting agent, FDA-approved for narcolepsy, shift work sleep disorder, OSA adjunct. DEA Schedule IV. Off-label cognitive enhancement framing separate in MolekulaX Nootropic library. | DAT/NET inhibitor stimulant, ADHD first-line Rx (Novartis Ritalin, Janssen Concerta). DEA Schedule II, significant abuse potential. |
| ATC codeATC codeThe WHO Anatomical Therapeutic Chemical code that classifies drugs by organ system and mechanism. | N06BA07 | N06BA04 |
| Prescription | Prescription only (Rx), DEA Schedule IV (USA) | Prescription only (Rx), narcotic Rx; DEA Schedule II |
| MechanismMechanism of actionThe molecular pathway by which a compound acts in the body (e.g. which receptor or enzyme it binds). | DAT inhibitor + histamine/orexin activation | DAT/NET reuptake inhibitor CNS stimulant (dopamine + norepinephrine) |
| Half-lifeHalf-lifeThe time for the compound’s plasma concentration to fall by half; indicates how fast it clears and how often it is dosed. | 12-15 h | IR ~3.5 h (1.3–7.7 h); ER/OROS effect lasts 10–12 h |
| OnsetOnsetThe time from dosing until a measurable effect appears. | 30-60 min, peak 2-4 h | IR 30–45 min (peak 1–3 h); ER/OROS 1–2 h |
| Full entry | Open → | Open → |
What it is
ModafinilWakefulness-promoting agent, FDA-approved for narcolepsy, shift work sleep disorder, OSA adjunct. DEA Schedule IV. Off-label cognitive enhancement framing separate in MolekulaX Nootropic library.
MethylphenidateDAT/NET inhibitor stimulant, ADHD first-line Rx (Novartis Ritalin, Janssen Concerta). DEA Schedule II, significant abuse potential.
ATC codeATC codeThe WHO Anatomical Therapeutic Chemical code that classifies drugs by organ system and mechanism.
ModafinilN06BA07
MethylphenidateN06BA04
Prescription
ModafinilPrescription only (Rx), DEA Schedule IV (USA)
MethylphenidatePrescription only (Rx), narcotic Rx; DEA Schedule II
MechanismMechanism of actionThe molecular pathway by which a compound acts in the body (e.g. which receptor or enzyme it binds).
ModafinilDAT inhibitor + histamine/orexin activation
MethylphenidateDAT/NET reuptake inhibitor CNS stimulant (dopamine + norepinephrine)
Half-lifeHalf-lifeThe time for the compound’s plasma concentration to fall by half; indicates how fast it clears and how often it is dosed.
Modafinil12-15 h
MethylphenidateIR ~3.5 h (1.3–7.7 h); ER/OROS effect lasts 10–12 h
OnsetOnsetThe time from dosing until a measurable effect appears.
Modafinil30-60 min, peak 2-4 h
MethylphenidateIR 30–45 min (peak 1–3 h); ER/OROS 1–2 h
Full entry