BIAXIN vs ZITHROMAX

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 23, 2026·How we rate

Possible drug interaction. BIAXIN and ZITHROMAX 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	BIAXIN	ZITHROMAX
Rating	72/100	64/100
Pharmacy pays	$0.47 /mL	~$9.48 /30
Type	RX	RX
Active ingredient	CLARITHROMYCIN	AZITHROMYCIN
Manufacturer	Abbvie	Pfizer
Dosage forms	Tablet	Injectable, Powder, Tablet
Drug class	Macrolide Antimicrobial	Macrolide Antimicrobial
Boxed warning	None	None
Half-life	about 3 to 4 hours at 250 mg, rising to 5 to 7 hours at 500 mg (dose-dependent)	about 68 hours
Treats	Bronchitis, Chlamydia Infections, Duodenal Ulcer	Chlamydia Infections, Haemophilus Infections, Nontuberculous Mycobacterium Infections

biaxin zithromax

Rating

72/100

64/100

Pharmacy pays

$0.47 /mL

~$9.48 /30

Type

Active ingredient

CLARITHROMYCIN

AZITHROMYCIN

Manufacturer

Abbvie

Pfizer

Dosage forms

Tablet

Injectable, Powder, Tablet

Drug class

Macrolide Antimicrobial

Boxed warning

None

Half-life

about 3 to 4 hours at 250 mg, rising to 5 to 7 hours at 500 mg (dose-dependent)

about 68 hours

Treats

Bronchitis, Chlamydia Infections, Duodenal Ulcer

Chlamydia Infections, Haemophilus Infections, Nontuberculous Mycobacterium Infections

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Frequently asked questions

Which is better-rated, Biaxin or Zithromax?

By our independent rating, Biaxin scores higher — 3.6 vs 3.2 out of 5 for Zithromax. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Biaxin and Zithromax?

Biaxin contains Clarithromycin, while Zithromax contains Azithromycin — 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.