Drilldown: Medicines

Codeine (1) · Omeprazole (1)

(multiple, generic dominant) (1) · Prilosec, Losec, Zegerid (1)

Analgesic (1) · Opioid (1) · Prodrug (1) · [[:Category:Antisecretory_agents|Gastric acid suppressant]] (1) · [[:Category:Proton_pump_inhibitors|Proton pump inhibitor (PPI)]] (1)

Prodrug; converted to [[Morphine|morphine]] by [[Enzyme:CYP2D6|CYP2D6]] for analgesic action. (1) · '"`UNIQ--vote-000000D8-QINU`"' Recovery of acid output requires synthesis of new pump enzyme. CYP2C19 substrate; PGx genotype substantially affects exposure and efficacy'"`UNIQ--ref-000000D9-QINU`"'. (1)

Mild to moderate pain; cough suppression (low-dose). (1) · '"`UNIQ--vote-000000DA-QINU`"', '"`UNIQ--vote-000000DB-QINU`"', '"`UNIQ--vote-000000DC-QINU`"', '"`UNIQ--vote-000000DD-QINU`"' (1)

20 mg PO once daily 30-60 minutes before breakfast (1) · Adult: 15–60 mg every 4 hours as needed. (1)

10, 20, 40 mg delayed-release capsules and tablets; 2 mg/mL oral suspension; immediate-release combo with sodium bicarbonate (Zegerid) (1) · Tablet (15, 30, 60 mg); oral solution; combination products (with [[Acetaminophen|acetaminophen]] or ibuprofen). (1)

360 mg/day (1) · 40 mg/d typical; up to 360 mg/d for Zollinger-Ellison (1)

IV (1) · Oral (1) · PO (only formulation marketed in the US). (1)

30–60 min (PO) (1) · Symptom relief 1-4 days; full acid suppression after 3-5 days of dosing (1)

24-72 hours per dose (irreversible enzyme binding; effect outlasts plasma exposure) (1) · 4–6 hours (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`"'

Other values:

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30-40% (oral; increases with repeated dosing as gastric pH rises)'"`UNIQ--ref-000000DF-QINU`"' (1) · ~50% (variable, CYP2D6-dependent for analgesic effect). (1)

Avoid; risk of neonatal opioid withdrawal with chronic use; UM-mother breastfeeding contraindicated. (1) · Widely used in pregnancy; meta-analyses do not show increased malformation risk.<sup class="pcp-cn" title="This claim needs a citation.">&#91;[[Pharmacopedia:Citation needed|citation&nbsp;needed]]&#93;</sup> (1)

OTC (20 mg) and [[USLegal:Prescription only|Rx-only]] (higher doses) in US (1) · US Schedule II (single-entity); Schedule III–V (combination products by content). (1)