Pipratac 4.5 gm Injection is a combination of two antibiotics used to treat bacterial infections by killing microorganisms. It is typically administered by a healthcare professional and should not be self-administered. Common side effects include nausea, vomiting, diarrhea, rash, and injection site reactions like pain, swelling, or redness. If these side effects persist, consult a doctor. Before using the medicine, inform your doctor if you have any allergies to antibiotics or kidney or liver problems. The medicine is generally safe to use during pregnancy and breastfeeding under doctor's supervision.