Each vial contains: Cefazolin (as sodium), BP 1 g (equivalent to Cefazolin).
Fazef (Cefazolin) in lyophilized form is supplied in vial equivalent to 1 g of cefazolin.
Cefazolin (Fazef) is a semi-synthetic cephalosporin for parenteral administration. It is the sodium salt of 3-{[(5-methyl-1,3,4-thiadiazol-2-yl)thio]-methyl}-8-oxo-7-[2-(1H-tetrazol-1-yl) acetamido]-5-thia-1-azabicyclo[4,2,0]oct-2-ene-2-carboxylic acid.