Skip to Content


In the US, Azithromycin (azithromycin systemic) is a member of the drug class macrolides and is used to treat Babesiosis, Bacterial Endocarditis Prevention, Bacterial Infection, Bartonellosis, Bronchitis, Cervicitis, Chancroid, Chlamydia Infection, COPD - Acute, Cystic Fibrosis, Gonococcal Infection - Uncomplicated, Granuloma Inguinale, Legionella Pneumonia, Lyme Disease - Erythema Chronicum Migrans, Mycobacterium avium-intracellulare - Prophylaxis, Mycobacterium avium-intracellulare - Treatment, Mycoplasma Pneumonia, Nongonococcal Urethritis, Otitis Media, Pelvic Inflammatory Disease, Pertussis, Pertussis Prophylaxis, Pharyngitis, Pneumonia, Sinusitis, Skin and Structure Infection, Skin or Soft Tissue Infection, STD Prophylaxis, Tonsillitis/Pharyngitis, Toxoplasmosis, Typhoid Fever and Upper Respiratory Tract Infection.

US matches:

UK matches:



ATC (Anatomical Therapeutic Chemical Classification)


CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Antibacterial: Macrolide

Chemical Names

N-metyl-11-aza-10-deoxo-10-dihydroerytromycin A

(2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)]-13-[(2,6-Dideoxy-3-C-metyl-3-O-metyl-α-L-ribo-hexopyranosyl)oxy]-2-etyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptametyl-11-[[3,4,6-trideoxy-3-(dimetylamino)-β-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one (WHO)

9-Deoxo-9a-aza-9a-metyl-9a-homoerytromycin A (USAN)

Foreign Names

  • Azithromycinum (Latin)
  • Azithromycin (German)
  • Azithromycine (French)
  • Azithromicina (Spanish)

Generic Names

  • Azithromycin (OS: USAN, BAN)
  • Azithromycine (OS: DCF)
  • BRN 5387583 (IS)
  • CP 62993 (IS: Pfizer)
  • DCH 3 (IS)
  • UNII-J2KLZ20U1M (IS)
  • XZ 450 (IS: Pfizer)
  • Azithromycin (PH: BP 2015, Ph. Eur. 8, USP 37)
  • Azithromycinum (PH: Ph. Eur. 8)
  • Azithromycin Hydrate (OS: JAN)
  • Azithromycin (PH: USP 37)
  • Azithromycin Hydrate (PH: JP XVI)
  • Azithromycin (PH: USP 37)
  • Azithromycin monohydrate (PH: Ph. Eur. 6)

Brand Names

International Drug Name Search


BANBritish Approved Name
DCFDénomination Commune Française
ISInofficial Synonym
JANJapanese Accepted Name
OSOfficial Synonym
PHPharmacopoeia Name
Rec.INNRecommended International Nonproprietary Name (World Health Organization)
USANUnited States Adopted Name
WHOWorld Health Organization

Click for further information on drug naming conventions and International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.