Antibiotic Ampicillin 500mg / 250mg

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Ampicillin is a broad-spectrum antibiotic belonging to a semi-synthetic penicillins group. It provides bactericidal effect due to the repressing of bacteria cell wall synthesis. It is active towards gram-positive aerobic bacteria: Staphylococcus spp. (except for the strains producing a penicillinase), Streptococcus spp. (including Enterococcus spp.), Listeria monocytogenes; gram-negative aerobic bacteria: Neisseria gonorrhoeae, Neisseria meningitis, Escherichia coli, Shigella spp., Salmonella spp., Bordetella pertussis, some strains of Haemophilus influenza. It is blasted under the influence of a penicillinase. It is acid-resistant.

Ampicillin is prescribed in case of infectious-inflammatory diseases caused by microorganisms sensitive to Ampicillin, including:

  • Respiratory infections (including bronchitis, pneumonia, lung abscess);
  • Infection contaminations of ENT-organs (including tonsillitis);
  • Infection contaminations bile-excreting tracts (including cholecystitis, cholangitis);
  • Infection contaminations of urinary tracts (including pyelitis, pyelonephritis, cystitis);
  • Infection contaminations of gastrointestinal tract;
  • Gynecologic infection contaminations;
  • Infection contaminations of a skin and soft tissues;
  • Peritonitis;
  • Sepsis, septic endocarditis;
  • Meningitis;
  • Rheumatic disease;
  • Erysipelas;
  • Gonorrhea.

Dosage and directions

Take the medication according to your prescription. Swallow the whole capsule of Ampicillin and wash it down with a glass of water.


Do not take Ampicillin if you are allergic to penicillin antibiotics. You may experience diarrhea and nausea after the drug intake.


Hypersensitivity to antibiotics from penicillin group. The expressed disorders liver function (for parenteral application).

Possible negative effects

Allergic reactions: dermal eruption, urticaria, itch, exfoliative dermatitis, erythema; in rare instances – an acute anaphylaxis. Alimentary system: nausea, vomiting, diarrhea, glossitis, stomatitis, pseudomembranous colitis, intestinal dysbacteriosis; Hemopoiesis system: anemia, leukopenia, thrombocytopenia, agranulocytosis. The effects caused by chemotherapeutic action: oral cavity candidiasis, vaginal candidiasis.

Drug interaction

Ampicillin intake may decrease the effect from taking several types of birth control pills.

Missed Dose

Take the medication directly as it was prescribed. If you missed the dose, take it as soon as you remember or wait until the next intake according to your schedule. You should increase the dose trying to compensate the missed dosage.


Contact your physician if you took the increased dose of Ampicillin antibiotic and experience nausea, vomiting, rush, hives.


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