About ampicillin + vial
Penicillin antibiotic
Used for
- Treats susceptible bacterial infections, including respiratory, urinary, skin, and bloodstream infections.
- Used for some serious infections, often alongside other antibiotics.
Usual adult dose
Commonly 1–2 g intravenously every 4–6 hours; dose depends on infection and kidney function.
Usual dose in children
Usually 25–50 mg/kg per dose intravenously every 6 hours; serious infections may need higher doses.
Common side effects
- Nausea, vomiting, or diarrhea
- Injection-site pain or inflammation
- Rash or allergic reaction
- Rarely, severe antibiotic-associated diarrhea
Important warnings
- Do not use with a serious penicillin allergy; cross-reactions with other beta-lactams can occur.
- Seek urgent care for breathing difficulty, facial swelling, or a severe rash.
- Use only for bacterial infections; unnecessary use promotes antibiotic resistance.
- Dose adjustment may be needed with impaired kidney function.
Pregnancy
Generally considered acceptable when clinically needed; human data have not shown an increased risk of birth defects.
Breastfeeding
Usually compatible; small amounts enter milk and may cause infant diarrhea, rash, or thrush.
Interactions
- Probenecid can increase ampicillin levels.
- Allopurinol may increase the chance of skin rash.
- May reduce the reliability of oral typhoid vaccine.
- May affect warfarin anticoagulation; monitoring may be needed.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.