Administering a double dose of the rabies vaccine to a dog is generally not considered a severe issue, but it can lead to some mild side effects. Here are some potential effects based on various sources:

1. Common Reactions: Dogs may experience mild side effects such as soreness at the injection site, increased drowsiness, and a slight rise in body temperature. They might also show signs like loss of appetite and minimal vomiting.

2. Duration of Effects: These side effects are typically mild and might last for 24 to 36 hours after vaccination.

3. Severe Reactions: In general, the risk of severe adverse reactions is low, but it can occur. In cases where dogs do exhibit more serious symptoms like hives, difficulty breathing, or excessive vomiting, it's important to contact a veterinarian immediately.

4. Consultation: If you suspect your dog has received a double dose or if you're concerned about potential reactions, it's always best to consult your veterinarian for personalized advice and monitoring.

Overall, while it's good practice to avoid double vaccinations, most dogs tend to tolerate an extra rabies shot without major issues. However, keeping an eye on your pet for any unusual behaviors or symptoms in the following days is recommended.

Sources

What Happens If a Dog Gets Vaccinated Twice?What Happens If a Dog Gets Vaccinated Twice?Apparently my veterinarian accidentally double vaccinated my dog ...Can a Dog Get Two Rabies Shots in One Year? Vet-Verified ...Side Effects of Rabies Vaccine in Dogs - Hill's Pet NutritionRabies in Dogs - Symptoms, Vaccine, & What You Should KnowWhat To Know About Possible Vaccine Reactions in Dogs - PetMD

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