Pfizer Omnipen


Omnipen is a penicillin-type antibiotic. This medicine contains active ingredient Ampicillin, which belongs to a group of drugs known as aminopenicillins. The antibiotic is an effective medicine that treats infections of the middle ear, sinuses, stomach and intestines, bladder, and kidney caused by susceptible bacteria. The given medicine has been manufactured by renowned pharmaceutical company, Pfizer Pharmaceuticals.

Manufacturer: Pfizer Pharmaceuticals

SKU: Pfizer Omnipen Categories: ,

Available Options

Pfizer Omnipen - 250mg

Pack Size Price/unit Price Qty Add to cart
90 pills$0.23 $20.70
120 pills $0.22 $26.77
180 pills $0.21 $38.50
240 pills$0.20 $49.13
300 pills$0.19 $57.96

Pfizer Omnipen - 500mg

Pack Size Price/unit Price Qty Add to cart
90 pills$0.25 $22.50
120 pills $0.24 $29.10
180 pills $0.23 $41.85
240 pills$0.22 $53.40
300 pills$0.21 $63.00


Active Ingredient: This antibiotic has an active ingredient Ampicillin. This ingredient belongs to a class of drugs known as aminopenicillins. It kills bacteria by preventing them from making the protein needed to build their cell walls. This ingredient is a broad-spectrum, semi-synthetic, beta-lactam penicillin antibiotic with bactericidal activity.

Indications: Antibiotic medicine treats and prevents many different types of infections like bladder infections, pneumonia, meningitis, gonorrhea, and infections of the stomach, intestines, heart, or blood. This medicine Omnipen should not be used for viral infections like common cold or flu. It is also used to treat urinary tract caused by E.coli, Pseudomonas aeruginosa, Enterococci, and Klebsiella pneumonia. It can be used in the treatment of endocarditis which is an inflammation of heart caused by Streptococcus species.

Action Mechanism: The medicine can alter the normal bacteria in the colon and encourage overgrowth of some bacteria such as Clostridium difficile which causes inflammation of the colon i..e pseudomembranous colitis.

Dosages: The medicine is a penicillin-type antibiotic that treats bacterial infections. The given medicine Omnipen is available in dosages as mentioned below:

  • 250 mg: Take this medicine on an empty stomach, 1 hour before or 2 hours after a meal with a full glass of water
  • 500 mg: It is recommended to take 1 hour before or 2 hours after a meal on an empty stomach

Note: Drink plenty of fluids while treating with this medicine. This medicine should be taken as prescribed by the doctor.

Additional information


250mg, 500mg


90 pills, 120 pills, 180 pills, 240 pills, 300 pills


$0.23, $0.22, $0.21, $0.20, $0.19


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