Ceftriaxone for injection, USP is a sterile, semisynthetic, broad-spectrum cephalosporin antibiotic for intravenous or intramuscular administration. Ceftriaxone sodium is (6R, 7R)-7-[2-(2-Amino-4-thiazolyl) glyoxylamido]-8-oxo-3-[[(1, 2, 5, 6-tetrahydro-2-methyl-5,6-dioxo-as-triazin-3-yl)thio]methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 72-(Z)-(O-methyloxime), disodium salt, sesquaterhydrate. Ceftriaxone is a third-generation of cephalosporins which is used for community acquired infections such as pneumonia and urinaly tract infections. It showed great advantage of once-daily administration based on pharmacological manner and need no renal impairment. It is stable for β-lactamases against first- or second- generations of cephalosporins. Ceftriaxone is also used for streptococcal endocarditis as alternative first-line therapeutic regimen and used for Sexually Transmited Disease (STD) such as syphilis and chancoroid.