What are the brand names of Azithromycin (Zithromax)?

Azithromycin Brand Names

Azithromycin is marketed under the brand name Zithromax. 1, 2

Primary Brand Name

• Zithromax is the primary brand name for azithromycin, manufactured by Pfizer, Inc. 2

Drug Classification and Structure

• Azithromycin is classified as an azalide antibiotic, which is a subclass of macrolide antibiotics 1, 3
• It is structurally derived from erythromycin but differs by having a methyl-substituted nitrogen atom incorporated into the lactone ring 1
• The molecular formula is C38H72N2O12 with a molecular weight of 749 1

Available Formulations

• Azithromycin tablets are supplied as film-coated, white oval-shaped biconvex tablets 1
• Available strengths include 250 mg and 500 mg tablets containing azithromycin dihydrate 1

Clinical Context

• The brand name Zithromax has been consistently used in clinical literature and guidelines when referring to azithromycin 2, 4
• This macrolide antibiotic is distinguished from erythromycin by its superior pharmacokinetic properties, including rapid tissue penetration and prolonged half-life 2, 5