Bactericidal antibiotic among the following is

The bactericidal antibiotic among the following is 1. Ofloxacin.

Bactericidal antibiotics kill bacteria, while bacteriostatic antibiotics only inhibit their growth. Ofloxacin is a fluoroquinolone antibiotic that is bactericidal against a wide range of bacteria, including gram-negative and gram-positive bacteria. It is used to treat a variety of infections, including urinary tract infections, pneumonia, and gonorrhea.

Erythromycin, chloramphenicol, and tetracycline are all bacteriostatic antibiotics. They are used to treat a variety of infections, but they do not kill bacteria as effectively as ofloxacin.