COUMADIN vs TYZAVAN

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 12, 2026·How we rate

Possible drug interaction. COUMADIN and TYZAVAN are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Attribute	COUMADIN	TYZAVAN
Rating	72/100	72/100
Pharmacy pays	~$2.58 /30	$1.49 /mL
Type	RX	RX
Active ingredient	WARFARIN SODIUM	VANCOMYCIN HYDROCHLORIDE
Manufacturer	Bristol Myers Squibb	Hikma
Dosage forms	Tablet	Injectable
Drug class	Vitamin K Antagonist	Glycopeptide Antibacterial
Boxed warning	None	Boxed warning
Half-life	about 40 hours (the label's effective half-life; range 20 to 60 hours)	—
Treats	Atrial Fibrillation, Postoperative Complications, Pulmonary Embolism	Diarrhea, Bacterial Endocarditis, Pseudomembranous Enterocolitis

coumadin tyzavan

Rating

72/100

Pharmacy pays

~$2.58 /30

$1.49 /mL

Type

Active ingredient

WARFARIN SODIUM

VANCOMYCIN HYDROCHLORIDE

Manufacturer

Bristol Myers Squibb

Hikma

Dosage forms

Tablet

Injectable

Drug class

Vitamin K Antagonist

Glycopeptide Antibacterial

Boxed warning

None

Boxed warning

Half-life

about 40 hours (the label's effective half-life; range 20 to 60 hours)

—

Treats

Atrial Fibrillation, Postoperative Complications, Pulmonary Embolism

Diarrhea, Bacterial Endocarditis, Pseudomembranous Enterocolitis

Frequently asked questions

Which is better-rated, Coumadin or Tyzavan?

Coumadin and Tyzavan are tied at 3.6 out of 5 by our independent rating.

What is the difference between Coumadin and Tyzavan?

Coumadin contains Warfarin Sodium, while Tyzavan contains Vancomycin Hydrochloride — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.