Sulphadimidine is lethal for both gram-positive and gram-negative bacterial. i.e. Pasteurella, Salmonella & Coliform organisms. it is a drug of choice whenever Sulphadimidine therapy is indicated, for example pyogenic respiratory or gastro-intestinal infections. It is ideal for pasteurellosis (Haemorrhagic septicaemia) Actinobacillosis (Wooden tongue) Actinomycosis (Lumpy jaw) collibacillosis and in Coccidiosis of all animals including poultry. In poultry or other animals when given orally Sulphadimidine solution absorbed immediately from the gastro-intestinal tract and it provides an appropriate and therapeutic concentration in the blood.