Sulfadiazine Sodium waa antibiyootig dhexdhexaad ah oo ku shaqeysa oo ah bakteeriyada bakteeriyada bakteeriyada iyo bakteeriyada xun-xun. Waxay leedahay saameyn liddi ku ah bakteeriyada Staphylococcus aureus ee aan soo saarin enzyme, Streptococcus pyogenes, Streptococcus pneumoniae, Escherichia coli, Klebsiella, Salmonella, Shigella, Neisseria gonorrhoeae, Neisseria meningitidis, iyo hargabka Haemophilus. Intaa waxaa dheer, waxay sidoo kale ka hortagtaa Chlamydia trachomatis, Nocardia asteroides, Plasmodium, iyo Toxoplasma in vitro. Hawlaha bakteeriyada ee alaabtani waxay la mid tahay tan sulfamethoxazole. Si kastaba ha ahaatee, sanadihii ugu dambeeyay, caabbinta bakteeriyada ee alaabtan ayaa kordhay, gaar ahaan Streptococcus, Neisseria, iyo Enterobacteriaceae.