BETHKIS vs ZYVOX

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 22, 2026·How we rate

Possible drug interaction. BETHKIS and ZYVOX 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	BETHKIS	ZYVOX
Rating	70/100	64/100
Pharmacy pays	$1.08 /mL	$1.43 /mL
Type	RX	RX
Active ingredient	TOBRAMYCIN	LINEZOLID
Manufacturer	Chiesi	Pfizer
Dosage forms	Solution	Powder, Injectable, Solution, Tablet
Drug class	Aminoglycoside Antibacterial	Oxazolidinone Antibacterial
Boxed warning	None	None
Half-life	—	about 4.3 to 5.4 hours (roughly 5 hours) in adults
Treats	Infectious Bone Diseases, Central Nervous System Infections, Pseudomonas Infections	Staphylococcal Infections, Streptococcal Infections, Bacterial Skin Diseases

bethkis zyvox

Rating

70/100

64/100

Pharmacy pays

$1.08 /mL

$1.43 /mL

Type

Active ingredient

TOBRAMYCIN

LINEZOLID

Manufacturer

Chiesi

Pfizer

Dosage forms

Solution

Powder, Injectable, Solution, Tablet

Drug class

Aminoglycoside Antibacterial

Oxazolidinone Antibacterial

Boxed warning

None

Half-life

—

about 4.3 to 5.4 hours (roughly 5 hours) in adults

Treats

Infectious Bone Diseases, Central Nervous System Infections, Pseudomonas Infections

Staphylococcal Infections, Streptococcal Infections, Bacterial Skin Diseases

Frequently asked questions

Which is better-rated, Bethkis or Zyvox?

By our independent rating, Bethkis scores higher — 3.5 vs 3.2 out of 5 for Zyvox. Ratings are based on FDA regulatory (recall-safety) data.

Which is cheaper, Bethkis or Zyvox?

Bethkis costs pharmacies less to acquire — about $1.08 vs $1.43 per ml, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Bethkis and Zyvox?

Bethkis contains Tobramycin, while Zyvox contains Linezolid — 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.