Drilldown: Medicines

Warfarin (1)

Coumadin (discontinued in US but name in common use), Jantoven (1)

[[:Category:Anticoagulants|Anticoagulant]] (1) · [[:Category:Vitamin_K_antagonists|Vitamin K antagonist]] (1)

None (1)

'"`UNIQ--vote-0000001B-QINU`"', '"`UNIQ--vote-0000001C-QINU`"', '"`UNIQ--vote-0000001D-QINU`"', '"`UNIQ--vote-0000001E-QINU`"', '"`UNIQ--vote-0000001F-QINU`"' (1)

Typical 5 mg PO daily; 2.5 mg in elderly, low body weight, malnutrition, hepatic dysfunction. Genotype-guided initial dosing per CPIC/IWPC algorithms (CYP2C9, VKORC1, CYP4F2) is one of the most-established PGx applications in current practice (1)

1, 2, 2.5, 3, 4, 5, 6, 7.5, 10 mg tablets (color-coded by strength) (1)

None · Indication-specific · 40 mg/d · 10 mg/d · 20 mg/d · 80 mg/d · 10 mg/d (adults) · 100 mg/d · 4 g/d · 400 mg/d · 40 mg/d typical; up to 240 mg/d for Zollinger-Ellison · 5 mg/d · 50 mg/d · 600 mg/d · No fixed ceiling; titrate to clinical effect and tolerability with CDC opioid prescribing guidance constraints on morphine-milligram-equivalent (MME) totals · No fixed maximum; titrated to TSH target · TID per eye · Titrated to glucose; no fixed ceiling · Titrated to glucose; no fixed maximum · '''20 mg/day in adults >60 years''' per FDA's 2011-2012 QT-prolongation warning; 40 mg/day in adults ≤60

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IV (rarely used; same dose) (1) · Oral (1)

None · Hours · 30-60 minutes · 1-2 hours · ~30 min · LDL lowering at 2 weeks, max by 4 weeks · ~1 hour · 15-30 minutes · 15–30 min · 1–2 h · 30–60 min · Antidepressant effect emerges over 1-2 weeks · BP and symptomatic LUTS improvement within 1-2 weeks · BP effect within 1-2 weeks · Clinical improvement within 24-72 hours · Days · Motor improvement over days at therapeutic dose · Over weeks · Postprandial glucose effect within days; HbA1c by 12 weeks · Sleep effect from first dose; antidepressant effect over 1-4 weeks

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2-5 days after stopping (factor II resynthesis-limited) (1)

36-42 hours (R/S enantiomers differ; S-warfarin is 2-5× more potent and cleared by CYP2C9)'"`UNIQ--ref-00000020-QINU`"' (1)

~100% (oral)'"`UNIQ--ref-00000021-QINU`"' (1)

'''Contraindicated in pregnancy''' (warfarin embryopathy, fetal hemorrhage) except in mechanical mitral valves where the maternal mortality of alternative agents may exceed fetal risk.'"`UNIQ--ref-00000022-QINU`"' (1)

[[USLegal:Prescription only|Rx-only]] in US (1)