How long does it take for a dog to have a reaction to coffee How long does it take for a dog to have a reaction to coffee is uncertain, usually a reaction occurs within 6 hours. If the dog eats a very small dose, there may be no effect. Dogs who eat coffee poisoning will experience symptoms such as mental hyperactivity, sudden increase in heart rate, muscle cramps or vomiting and diarrhea, which can be serious and lead to death. If a dog is found to have accidentally ingested coffee, take it to the vet as soon as possible for vomiting or gastric lavage.
English Deutsch Français Español Português 日本語 عربي