Drilldown: Medicines

Methylphenidate (1)

Ritalin, Ritalin LA, Concerta, Metadate CD, Daytrana, Quillivant XR (1)

NDRI (1) · Psychostimulant (1)

Norepinephrine–dopamine reuptake inhibition (DAT, NET) (1)

ADHD, narcolepsy (1)

None (1)

None (1)

None (1)

None · Oral · IV · topical · IM · intranasal · rectal · subcutaneous · topical ophthalmic · ophthalmic · intramuscular · intravenous · transdermal · vaginal · Subcutaneous (abdomen · sublingual · thigh · inhaled · SC · intra-articular

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20–60 min (oral) (1)

IR 3–5 h; LA/SR 6–8 h; Concerta 10–12 h; Daytrana ~9 h wear time (1)

None · ~12 hours · ~27 days · ~5 h (caffeine) · '''Autoinduction''': 25-65 hours initially, falling to 12-17 hours after 2-3 weeks of dosing as carbamazepine induces its own CYP3A4 metabolism. Major clinical implication: doses require re-titration after the autoinduction period'"`UNIQ--ref-0000001D-QINU`"' · 0.5-1.5 hours (plasma); pharmacodynamic effect persists 24+ hours'"`UNIQ--ref-000000DE-QINU`"' · 1-1.3 hours'"`UNIQ--ref-000001A1-QINU`"' · 1-1.5 hours'"`UNIQ--ref-00000DE3-QINU`"' · 1-2 hours (parent compound)'"`UNIQ--ref-00000029-QINU`"' · 1-2 hours (parent); 18-30 hours for active metabolite oxypurinol'"`UNIQ--ref-0000030F-QINU`"' · 1-2 hours'"`UNIQ--ref-00000017-QINU`"' · 1-3 days acute, 4-6 days chronic; 4-16 days for norfluoxetine'"`UNIQ--ref-0000004C-QINU`"' · 1-3 hours (normal liver); markedly prolonged in overdose with glutathione depletion'"`UNIQ--ref-00000022-QINU`"' · 1-3 minutes (very short)'"`UNIQ--ref-00000C0F-QINU`"' · 1.4 hours (parent); 13-24 hours for active metabolite canrenone'"`UNIQ--ref-00000354-QINU`"' · 1.5-2 hours (longer in renal failure)'"`UNIQ--ref-00000222-QINU`"' · 1.5-2 hours'"`UNIQ--ref-00000020-QINU`"' · 10-11 hours (benazeprilat, the active metabolite)'"`UNIQ--ref-00000A22-QINU`"' · 11-13 h (immediate-release); 11-16 h (extended-release) · 11-15 hours'"`UNIQ--ref-00000842-QINU`"'

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~30% (high first-pass) (1)

Pregnancy categories were retired by FDA in 2015. Limited reproductive data with small observational signal for cardiac malformations; risk-benefit decision, with many patients deferring ADHD treatment during pregnancy. See pregnancy_details for the full discussion. (1)

Schedule II (1)