All of the following are ture regarding cephalosporins except -
Bactericidal agents
Active against only gram negative bacteria
IIIrd generation are resistant to beta-lactamases from gram negative bacteria
Ceftriaxone is administered parenterally
Ans. is 'b' i.e., Active against olny gram negative bacteria Cephalosporins are active against gram positive as well as gram negative bacteria, and are bactericidal. o Ceftriaxone is a parentral cephalosporin. o Third generation cephalosporins are highly resistant to beta-lactamases from gram negative bacteria.