In general, the starting dosage of prednisone for dogs is 0.25 to 1 mg per kilogram of body weight, given once or twice daily. For an 8 lb dog, this would be equivalent to 0.36 to 1.42 mg of prednisone per day. The dosage may be adjusted based on your dog's response to the medication and any side effects that occur.
It's important to follow your veterinarian's instructions carefully when giving prednisone to your dog. Do not give your dog prednisone if it is not prescribed by a veterinarian. Prednisone can interact with other medications, so it's important to inform your veterinarian about any other medications your dog is taking.