Ampicillin, known by its brand name Principen, is a broad-spectrum antibiotic medication used to treat a variety of bacterial infections. It belongs to the penicillin group of drugs and is classified as a beta-lactam antibiotic. Ampicillin is effective against both Gram-positive and Gram-negative bacteria. It is commonly used to treat respiratory tract infections such as pneumonia and bronchitis, urinary tract infections, skin and soft tissue infections, gastrointestinal infections, and certain sexually transmitted diseases. Ampicillin works by inhibiting the formation of the bacterial cell wall, leading to cell lysis and ultimately killing the bacteria. It is available in various dosage forms including capsules and powder for injection.

Price of Ampicillin

The general market rate for Ampicillin varies from £0.19 to £0.41 per pills. Determining factors include the size of the packaging and the potency of its components (60 or 360 mg).

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Ampicillin is a broad-spectrum antibiotic medication that is used to treat various bacterial infections. It belongs to the penicillin group of drugs and works by stopping the growth of bacteria. Ampicillin is available in both oral and injectable forms and is often prescribed for respiratory tract infections, urinary tract infections, skin infections, and certain types of gastrointestinal infections. It is important to follow the prescribed dosage and complete the full course of treatment to effectively clear the infection.

Ampicillin should not be used if you are allergic to penicillin or have a history of severe allergic reactions to antibiotics. It is important to inform your healthcare provider about any allergies you have or any previous adverse reactions to medications. Additionally, certain medical conditions require caution when taking ampicillin, such as asthma, liver disease, or kidney problems. It is essential to discuss your medical history with your doctor to ensure the safe and effective use of ampicillin.

Like any medication, ampicillin may cause some side effects. The most common side effects include nausea, vomiting, diarrhea, and skin rash. These side effects are usually mild and temporary. However, if you experience severe or persistent side effects, such as severe diarrhea, abdominal pain, or difficulty breathing, you should seek medical attention immediately. It is crucial to report any new or worsening symptoms to your healthcare provider.

Ampicillin should be taken exactly as prescribed by your healthcare provider. It is typically taken at regular intervals throughout the day, with or without food. If you miss a dose, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not double the dose to make up for a missed one. In case of an overdose, seek immediate medical assistance. Symptoms of an overdose may include severe nausea, vomiting, and diarrhea.

Ampicillin may interact with certain medications, potentially affecting their effectiveness or increasing the risk of side effects. It is important to inform your healthcare provider about all the medications you are currently taking, including prescription drugs, over-the-counter medications, and herbal supplements. Some drugs that may interact with ampicillin include oral contraceptives, allopurinol, and methotrexate. Your healthcare provider can guide you on the appropriate use of ampicillin in combination with other medications.

  • Can ampicillin be used during pregnancy?

    Ampicillin is generally considered safe for use during pregnancy. However, it is essential to consult with your healthcare provider before taking any medication during pregnancy.

  • Can I drink alcohol while taking ampicillin?

    It is generally recommended to avoid consuming alcohol while taking ampicillin. Alcohol may interfere with the effectiveness of the medication and increase the risk of side effects.

  • How long does it take for ampicillin to start working?

    The onset of action of ampicillin may vary depending on the type and severity of the infection. It is important to complete the full course of treatment as prescribed by your healthcare provider, even if you start feeling better earlier.

  • Can ampicillin be given to children?

    Ampicillin can be used in children, but the dosage and duration of treatment may vary based on the child’s age and weight. It is important to consult with a pediatrician for appropriate dosing instructions.

  • Are there any dietary restrictions while taking ampicillin?

    There are no specific dietary restrictions while taking ampicillin. However, it is generally recommended to avoid consuming excessive amounts of calcium-rich foods or supplements, as they may interfere with the absorption of the medication. Discuss any concerns with your healthcare provider.


250mg, 500mg

Active ingredient


120 pills, 180 pills, 270 pills, 360 pills, 60 pills, 90 pills


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