Can Coffee Cause Diarrhea In Dogs?

Can Coffee Cause Diarrhea In Dogs? Caffeine raises blood pressure and causes cardiac arrhythmias, which can be dangerous. Pets may also lose muscle control and have tremors or seizures. Caffeine affects the gastrointestinal tract and can cause vomiting and diarrhea. How much coffee is toxic to dogs? Toxic Consumption: In dogs, 140 mg/kg (63 mg/lb)