List of β-lactam antibiotics

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Penam Carbapenam Oxapenam Penem Carbapenem Monobactam Cephem Carbacephem Oxacephem
The β-lactam core structures. (A) A penam. (B) A carbapenam. (C) An oxapenam. (D) A penem. (E) A carbapenem. (F) A monobactam. (G) A cephem. (H) A carbacephem. (I) An oxacephem.

This is a list of common β-lactam antibiotics—both administered drugs and those not in clinical use—organized by structural class. Antibiotics are listed alphabetically within their class or subclass by their nonproprietary name. If an antibiotic is a combination drug, both ingredients will be listed.

Penams[edit]

Penicillin G
Amoxicillin
Main articles: Penicillin and Penam

Narrow-spectrum[edit]

β-Lactamase-sensitive[edit]

β-Lactamase-resistant[edit]

Moderate-spectrum[edit]

Broad-spectrum[edit]

Extended-spectrum[edit]

Carboxypenicillins[edit]

Ureidopenicillins[edit]


Cephems[edit]

Cephalosporin C
Cefoxitin
Main articles: Cephalosporin, Cephamycin and Cephem

First generation (Moderate spectrum)[edit]

Second generation (Moderate spectrum)[edit]

With anti-Haemophilus activity[edit]

With anti-anaerobic activity[edit]

Third generation (Broad spectrum)[edit]

Fourth generation (Broad spectrum)[edit]

(With β-lactamase stability and enhanced activity against Gram-positive bacteria and Pseudomonas aeruginosa)

Fifth generation* (Broad spectrum)[edit]

(Antipseudomonal in addition to activity against MRSA and VRE. *Not universally accepted nomenclature. )


Carbapenems and penems[edit]

(Broadest spectrum of β-lactam antibiotics)

Thienamycin
Main articles: Carbapenem and Penem


Monobactams[edit]

Aztreonam
Main article: Monobactam


β-Lactamase inhibitors[edit]

Clavulanic Acid