Answer by
PeggyG (14)
Flagyl is a type of antibiotic, and as with most or all antibiotics, the dosage amount is based on the dog's weight. You should talk with your vet to learn the dosage amount. Do not give larger amounts or use this medication longer than prescribed. Symptoms and side effects are vomiting, seizures, fever, chills, swelling, mouth sores and diarrhea.