Does Gabapentin Cause Heavy Breathing In Dogs?

Does Gabapentin Cause Heavy Breathing In Dogs? If the sedative effects persist or appear to be excessive or you notice signs of an allergic reaction, such as hives, itching, swelling, and difficulty breathing, contact your veterinarian immediately. What are the side effects of gabapentin in dogs? Diarrhea. Vomiting. Depression. Bulging eyes. Loss of coordination. Oversleeping.