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)

No fixed maximum; titrated to INR target (1)

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

Other values:

Search

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

Other values:

Search

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)