What are some commonly uses drugs for bacterial infection other than. Zythromax?

Several groups of Rx. There are a few groups of antibiotics that are commonly used for the majority of bacterial infections (1) penicillins (amoxil, keflex, cephalosporins, ampicillin...), (2) erythromycins (zithromax), (3) tetracyclines (minocycline, doxycycline), (4) quinolones (levaquin, ciprofloxin, avelox...). Each generation was developed because bacteria mutated and were now resistant to the older antibiotic.
Depends. It depends on the site of infection. Zithromax is only for certain types of infections. Other antibiotics commonly used outside the hospital are amoxicillin, levofloxacin, ciprofloxacin, bactrim, augmentin, (amoxicillin and clavulanate) clindamycin, keflex, and others.