You should contact your veterinarian as quickly as possible if your dog exhibits any unusual behavior, including the following symptoms:

• Vomiting, diarrhea or excessive urination for more than twelve hours
• Fainting
• Loss of balance, staggering or falling
• Constipation or straining to urinate
• Runny eyes or nose
• Persistent scratching at eyes or ears
• Thick discharge from eyes, ears, nose or sores
• Coughing or sneezing
• Difficulty breathing or prolonged panting
• Shivering
• Whining for no apparent reason
• Loss of appetite for 24 hours or more
• Weight loss
• Dramatic increase in appetite for 24 hours or more
• Increased restlessness
• Excessive sleeping or unusual lack of activity
• Limping, holding or protecting part of the body
• Excessive thirst