Drilldown: Medicines

Methadone (1)

Dolophine, Methadose, Diskets (oral dispersible tablets for OTPs) (1)

[[:Category:NMDA antagonists|NMDA receptor antagonist]] (1) · [[:Category:Opioid analgesics|Opioid analgesic (full mu-agonist)]] (1) · [[:Category:Schedule II controlled substances|Schedule II controlled substance]] (1)

None (1)

'"`UNIQ--vote-0000004C-QINU`"', '"`UNIQ--vote-0000004D-QINU`"', '"`UNIQ--vote-0000004E-QINU`"' (1)

None (1)

Tablets 5, 10, 40 mg (40 mg dispersible restricted to OTPs); oral concentrate 10 mg/mL; oral solution 1, 2, 10 mg/mL; injection 10 mg/mL (1)

No formal hard ceiling; in MOUD maintenance, doses typically remain at or below 120 mg/day with higher doses reserved for documented under-treatment after careful clinical assessment (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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Oral analgesic effect 30-60 minutes; opioid-withdrawal suppression 30 minutes (oral); IV ~10 minutes (1)

Analgesic effect 4-8 hours (much shorter than half-life would suggest, due to receptor kinetics); MOUD effect (opioid withdrawal suppression) 24-36 hours per single daily dose (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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~70-85% (oral, high relative to other opioids) (1)

None (1)

None (1)