Drug reference

ampicillin

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

Broad-spectrum penicillin; interferes with bacterial cell wall synthesis during active replication, causing bactericidal activity against susceptible organisms; alternative to amoxicillin when unable to take medication orally

Common side effects

  • Rash
  • Urticaria
  • Erythema multiforme
  • Fever
  • Diarrhea

Related conditions

Frequently asked questions

What drug class is ampicillin?

ampicillin belongs to: Anti Bacterial.

How does ampicillin work?

Broad-spectrum penicillin; interferes with bacterial cell wall synthesis during active replication, causing bactericidal activity against susceptible organisms; alternative to amoxicillin when unable to take medication orally

What are the common side effects of ampicillin?

Rash, Urticaria, Erythema multiforme, Fever, Diarrhea

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