Combination		Dosage, Route, and Frequency
Trimethoprim/sulfadiazine		15-60 mg/kg, PO, IV, or IM, sid
Ormetoprim/sulfadimethoxine		55 mg/kg, PO, sid (initial dose; half for subsequent doses)
Drue Withdrawal and Milk Discard Times of Potentiated Sulfonamides
Combination	Withdrawal Time (days)		Milk Discard Time (days)
Trimethoprim/sulfadiazine	3		7
Trimethoprim/sulfadoxine	5 (PO) 28 (parenteral)

 

Sulfathiazole, Sulfamethazine, Sulfamerazine, Sulfadiazine, etc.

Activity profile (Sulfonamides)

 

Good Actinomyces, Bacillus, Brucella, ,E. rhusiopathiae, L. monocytogenes,

Streptococcus sp., Chlamydia sp., coccidia, Pneumocystis carinii, Cryptosporidium sp.