Yes, Lupinem is highly effective and safe for treating a liver abscess (pus in the liver). It is a strong, broad-spectrum antibiotic commonly prescribed for severe intra-abdominal infections because it penetrates liver tissue well to kill the infection-causing bacteria. You do not need to ask your doctor to change this medicine unless you have a known severe allergy to penicillins or carbapenems. Please complete the full course of treatment as prescribed. Your medical team will monitor your progress closely with blood tests and imaging.