MedicinePOM

Aztreonam

Injected antibiotic for serious Gram-negative bacterial infections.

Clinical information

Common uses

urinary tract infections
pneumonia and bronchitis
septicaemia (blood infection)
skin and skin-structure infections

Common side effects

diarrhoea
feeling sick or vomiting
rash
vein irritation or injection-site discomfort

Cautions

allergic reactions can occur even without prior exposure
use cautiously with penicillin or cephalosporin allergy
antibiotic-associated C. difficile diarrhoea can occur

Pregnancy: only if clearly needed

Reference information, not medical advice — always follow your doctor or pharmacist. Source: DailyMed, dailymed.nlm.nih.gov, Azactam (aztreonam) injection label, setid 9a105eaf-ee77-4016-beeb-d425a5565db2 (accessed 2026-08-16)

Approved brands & formulations3

Brand name	Dosage form	Strength	Importer	Category
Azactam 0.5g	Parenteral ( Injection )	500 mg	authorized medicine importers	POM
Azactam 1 g	Parenteral ( Injection )	1 gm	authorized medicine importers	POM
Aztreonam	Parenteral ( Injection )	500 mg	—	POM