Sulfathiazole Veterinary Oral Solution

Charge item 4 in a suitable stainless steel-jacketed vessel, heat to 70°C. 

Optionally, an antioxidant such as 0.02% sodium bisulfite or 0.5% cystein may be added if necessary. 

In a separate vessel charge item 4 and heat to 90° to 95°C and then add item 3 (e.g., parabens) and dissolve cool to 40°C. 

Boil a suitable quantity of item 15, cool down to 70°C, and add and dissolve items 2 and 3. 

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