Effydral Effervescent Tablet Contra-indications and warnings, etc For Animal Treatment Only If the gastrointestinal tract is completely obstructed, care should be taken when administering oral solutions. Whenever possible adequate colostrum should be fed to calves and pigs. Avoid over-feeding of milk or milk replacer. Solutions should be prepared using clean water and feeding utensils should be kept clean. Replace with fresh solution every 24 hours. If Effydral is administered in too concentrated a solution to a calf or pig, free access to drinking water should be provided. In very severe cases of dehydration accompanied by shock, additional intravenous fluid therapy may be required with an appropriate parenteral solution. If signs of disease persist or appear, consult a veterinary surgeon. Keep out of reach and sight of children. Meat withdrawal period–zero days. User warning: Wash hands after use.