Drug reference

ampicillin-sulbactam

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Drug class

Anti Bacterial (Penicillins)

Mechanism of action

Drug combination of beta-lactamase inhibitor with ampicillin; interferes with bacterial cell wall synthesis during active replication, causing bactericidal activity against susceptible organisms; alternative to amoxicillin when unable to take medication orally; covers skin, enteric flora, and anaerobes; not ideal for nosocomial pathogens.

Common side effects

  • IM injection site pain
  • IV injection site pain
  • Thrombophlebitis
  • Diarrhea

Contraindications

  • Hypersensitivity to drug or components Patients with previous history of cholestatic jaundice/hepatic dysfunction associated with ampicillin sulbactam

Related conditions

Frequently asked questions

What drug class is ampicillin-sulbactam?

ampicillin-sulbactam belongs to: Anti Bacterial.

How does ampicillin-sulbactam work?

Drug combination of beta-lactamase inhibitor with ampicillin; interferes with bacterial cell wall synthesis during active replication, causing bactericidal activity against susceptible organisms; alternative to amoxicillin when unable to take medication orally; covers skin, enteric flora, and anaerobes; not ideal for nosocomial pathogens.

What are the common side effects of ampicillin-sulbactam?

IM injection site pain, IV injection site pain, Thrombophlebitis, Diarrhea

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