Prednisone (corticosteroid) question.

Question: 

When my dog is put on  Prednisone, how long should it be before we start seeing  symptoms (i.e., it starts taking affect, such as increased  appetite, thirst, urination, etc.)? 

Answer: 

It would be best to contact the veterinarian who prescribed the medication. In this case there are many variables to consider such as the dosage and your dogs medical condition.