Buy Online Ampicillin
Antibiotics • Educational only; not medical advice. Prescriptions at clinician discretion.
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Dr. Annie Casta, M.D., FAAP
Pediatrics Specialist
Providing compassionate pediatric care, wellness exams, and preventive treatments for children and adolescents.
Learn MoreDr. Jorge Trapaga, ARNP
Family Medicine & Primary Care
Specializing in primary care, chronic disease management, and wellness services for adults and families.
Meet Dr. TrapagaOverview
Ampicillin is a broad-spectrum β-lactam antibiotic within the aminopenicillin class. It inhibits bacterial cell-wall synthesis, leading to cell lysis. Introduced in 1961, it remains a benchmark antibiotic for many infections.
Uses
Treats respiratory, urinary, gastrointestinal, meningitis, and enterococcal infections. Often combined with sulbactam (Unasyn) to overcome β-lactamase resistance.Dosage & Administration
Adults: 250–500 mg every 6 hours orally or by injection. Take 1 hour before or 2 hours after meals on an empty stomach. Complete therapy as prescribed.Side Effects & Warnings
Possible effects: diarrhea, rash, nausea. Serious: hypersensitivity reactions, pseudomembranous colitis, and superinfection. Contraindicated in penicillin allergy.Patient Considerations
Report rash or breathing difficulty immediately. Use backup contraception during therapy.Ready for next steps?
FAQ
Can Ampicillin treat colds?
No, it is ineffective against viruses.
What foods should I avoid?
Take on an empty stomach for best absorption.
Can pregnant women use Ampicillin?
Yes, it is generally considered safe.
Government / NIH sources
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