Ampicillin
Ampicillin is a penicillin Antibiotic used for selected susceptible bacterial infections. Oral and injectable forms have different clinical roles and are not interchangeable.
Key takeaways
- Infection site, severity, likely bacteria, resistance and test results guide treatment.
- Take the prescribed formulation exactly as directed and do not share or reuse leftovers.
- Breathing difficulty, facial swelling, a blistering rash or severe persistent diarrhoea needs urgent care.
Listings are for comparison and general information, not an antibiotic recommendation; suitability and supply depend on diagnosis, clinician and pharmacy checks and prescription requirements.
Important safety checks
Previous penicillin or severe antibiotic allergy, kidney function, pregnancy and interacting medicines require review. Some viral illnesses can increase rash risk. Injectable treatment belongs in an appropriate clinical setting.
When to seek urgent care
Seek emergency help for breathing difficulty, throat swelling, collapse or a severe blistering rash. Bloody or persistent watery diarrhoea, jaundice or rapidly worsening infection needs prompt assessment.