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)

Anticoagulant effect at 24-72 hours; full INR effect 5-7 days (1)

None · 24 hours · 4-6 hours · 12 hours · 6-8 hours · Daily dosing · 8-12 hours · 12-24 hours · Hours · Hours per application · 24 hours (HS dosing) · 24 hours (once-daily dosing) · 24 h · N/A · N/A (replacement) · Variable · ~7-8 hours · 3-5 hours · 4-6 hours (IR); 24 hours (ER) · 6-12 hours

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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)