Antibiotic prophylaxis refers to the preventive use of antibiotics to reduce the risk of infection, particularly before certain medical procedures. This approach is commonly applied in patients who are at higher risk of developing infections, such as those with heart conditions undergoing dental work or individuals with weakened immune systems. The goal of antibiotic prophylaxis is to prevent potential infections that could arise from bacteria entering the bloodstream during procedures. It is important to follow guidelines and consult healthcare professionals to determine when and which antibiotics should be used to ensure safety and effectiveness.