Pivampicillin
Pivampicillin[edit | edit source]
Pivampicillin is an antibiotic that belongs to the class of beta-lactam antibiotics. It is a prodrug of ampicillin, which means it is converted into the active form, ampicillin, in the body. Pivampicillin is used to treat a variety of bacterial infections by inhibiting the synthesis of bacterial cell walls.
Mechanism of Action[edit | edit source]
Pivampicillin, like other beta-lactam antibiotics, works by interfering with the synthesis of the bacterial cell wall. It binds to and inactivates penicillin-binding proteins (PBPs) located inside the bacterial cell wall. This action inhibits the final transpeptidation step of peptidoglycan synthesis, which is crucial for bacterial cell wall integrity. As a result, the bacteria are unable to maintain their cell wall structure, leading to cell lysis and death.
Pharmacokinetics[edit | edit source]
Pivampicillin is absorbed from the gastrointestinal tract and is rapidly converted to ampicillin in the body. The conversion occurs primarily in the liver, where the pivaloyl group is cleaved off, releasing the active ampicillin. The bioavailability of ampicillin from pivampicillin is higher compared to oral ampicillin, making it a more effective option for oral administration.
Clinical Uses[edit | edit source]
Pivampicillin is used to treat a variety of infections caused by susceptible bacteria, including:
- Respiratory tract infections
- Urinary tract infections
- Skin and soft tissue infections
- Gastrointestinal infections
Side Effects[edit | edit source]
Common side effects of pivampicillin include:
- Gastrointestinal disturbances such as nausea, vomiting, and diarrhea
- Allergic reactions such as rash, itching, and anaphylaxis
- Hepatotoxicity due to the release of pivalic acid
Precautions[edit | edit source]
Patients with a history of penicillin allergy should avoid using pivampicillin due to the risk of cross-reactivity. It is also important to monitor liver function in patients receiving long-term therapy, as the release of pivalic acid can lead to liver damage.
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