I was give 2antibiotics together. this popped up online. please tell me what it means. enhance bactericidal efficacy(synergistic effects) is it safe?

Works better with 2: To enhance bactericidal efficacy means that the two drugs increase the ability to kill the specific bacteria in question. Not all antibiotics kill 100 percent of every germ. How many are killed (bactericidal effect/rate) depends on sensitivity (right drug for germ) dosage,, route (IV or oral), frequency and duration (along with many other factors, like compliance : forgetting to take the med)