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Dog Prozac Aggression FAQ’s

Dog Prozac aggression can mean two things.  1) It might be that your dog has become aggressive because of Prozac (rare)  2) It can also mean that your dog is being treated for aggressive behavior.

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If you are afraid your dog is going to hurt someone, you need to take control. The first thing to do is take your dog to the veterinarian. Underlying disease or pain could be at the root of the problem.

Your second option might be a dog trainer or behaviourist, and your third option might be Prozac.

If you’re reading this post, I’ll assume you’re having difficulties with your companion animal’s behaviour.  This post answers the most frequently asked questions on the topic of dog Prozac aggression.


#1 How Can I Tell if My Dog Has Dog Prozac Aggression?

Dog aggression can come from learned behaviour. It can also be a response to fear and anxiety. Unprovoked dog aggression can also be genetic.

Ask yourself the following two questions:

aHas my dog attempted to bite or attack someone in the last month?

Certain dogs like Cocker Spaniels develop a condition known as Rage Syndrome. The dog can be perfectly fine one minute and biting the next.

b) Do I feel safe with my dog 100% of the time?

Everyone thinks their own dog would never turn on them, but it can happen.  Brain injury and disease can contribute to unprovoked aggression. Pain can make a dog bite.  You might not know that your dog is in pain or is suffering from an illness.

A veterinarian can do a full examination to see if there is an underlying health condition.  Certain health conditions like thyroid disorders, diabetes, rabies, etc., can contribute to that aggression.

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2.  Should My Dog Be Euthanized For Aggression?

If your large dog were to maul and kill another person, your dog could be put down, and you would likely face charges.

A much smaller dog might not maim or kill a person, but he/she is still a risk to children, other animals, etc.   In this case, it would depend on the severity of the situation.  Ultimately, the decision is in the hands of the law.

Avoid This From Happening!

Don’t Take Too Long!

Reconditioning an aggressive dog takes time. However, at some point you have to consider other options.  Give it six to eight weeks at the most. If you don’t see any improvement, it might be time to consider Prozac.  Let’s assume a veterinarian as already determined there is no physical condition causing the aggression.  In that case, it might be in the dog’s best interest to take Prozac.

3. Can Dog Aggression, Fear, and Anxiety be treated with Antidepressants?

Yes. dogs have been successfully treated with antidepressants like Prozac.  It’s designed as a temporary measure long enough to get your dog back on track. 

Prozac for dogs helps to manage signals in the brain. It takes up to six weeks to work (or longer), but it could put your dog in the right frame of mind for reconditioning. 

That means socializing your dog in a variety of situations involving other people and animals. It might mean trying your dog on a new diet, and it will definitely include regular exercise.

Serotonin works as a neurotransmitter, sending messages to the brain. It’s known as the “feel good” hormone and it is released during moderate exercise. In as few as 15 minutes, both you and your dog could be feeling better.

Did you know that some breeds are prone to rage syndrome?  Rage syndrome, or Sudden Onset Idiopathic Aggression, is a genetic condition that affects certain breeds, like Cocker Spaniels.  

4. Is Dog Prozac Aggression a Side Effect of the Anti-Depressant?

In extremely rare cases, yes.  Work with a veterinarian who has experience treating dogs with Prozac and make sure to attend all follow-up appointments. The doctor will assess any side-effects and adjust dosage accordingly. 


5. Can I Manage Fear Aggression in My Dog Without Help?

If you want to try to correct the problem on your own, it’s important to take a lot of precautions.  Make sure to put a “Beware of Dogs” sign on your property. Muzzle your dog when you take him/her outside.

It’s in your best interest, however, to talk to a dog trainer/ behaviorist. You could learn a few useful techniques in just one visit.

6. My Companion Animal Cornered and Attacked Me. What Should I do?

First, look after yourself.  The love for your dog shouldn’t get in the way of common sense.  Bring your dog to a veterinarian for an assessment. 

Disease, pain, or genetic conditions could be causing the problem.  Do not wait for someone to get seriously injured.



7. What Else Does Prozac Treat?

Prozac helps a number of conditions including dog aggression, noise anxiety, obsessive compulsive disorder, and separation anxiety.

It’s not easy, but you may have to look within yourself before you can help your dog.  Is your home overly noisy and chaotic? Do you reward your dog to try to get him to stop jumping, barking, or lunging?  In your mind, you might be trying to calm your dog by speaking softly and patting him. Your dog, however, just sees it as a reward. 


8. Can Prozac Replace Behavioural Modification?

In order to see the behaviour you want, it’s going to take time and effort.  Prozac isn’t designed to solve the problem, however. Prozac is a tool to help calm your dog while you “fix” the real issue.

It takes about six to eight weeks for the medication to really take effect. Once it does, use that time wisely. Your dog might seem to suddenly be “okay”, but without the supplemental training, that dangerous behavior is going to come back with a vengeance.


9. Where Can I Find a Good Behaviourist?

Check out this link to the Association of Professional Dog Trainers.

Locate certified trainers by clicking on “Locate a Trainer”.  You will need to enter your zip code.

In Canada, go to the Canadian Association of Professional Dog Trainers .

In the United Kingdom, go to the Association of Pet Dog Trainers.


10. Does Prozac for Dogs Have Side-Effects?

Thankfully, Prozac has very few serious side-effects.  Dog Prozac aggression is a very rare occurrence.

In the first few weeks, your dog might experience some tummy upset and loss of appetite. This should clear up.

All medications have rare side effects and, in Prozac, they include aggressive behaviour (ironically), seizures, severe itch, diarrhea, and liver damage.

Keep regular follow-up appointments to ensure the best possible outcome.


11. How Do I Wean My Dog From Prozac?

Don’t even think of this until your dog has been on it for a while. The weaning process takes time and must be done very slowly to avoid discontinuation syndrome. 

12. How Will I Know When It’s Time to Wean My Dog Off of Prozac?

The veterinarian will help you to decide when to wean your dog off of Prozac. Consult with a trained animal behaviourist, your family, and friends, before taking your dog off of Prozac.

Get an honest, unbiased opinion. The important thing is to have a healthy, happy dog.

To Sum It Up…

You should always take an aggressive dog to the veterinarian before he/she hurts someone. It’s possible that an underlying condition is causing the aggression.

Dog Prozac aggression is an extremely rare occurrence and should not stop you from considering an antidepressant.  Mild side-effects could include tummy upset or diarrhea.

If your veterinarian prescribes Prozac for your dog, make sure to follow the dosing instructions carefully. Weaning a dog too quickly could be dangerous. Work with your veterinarian when the time comes.

I’ve just given you a lot to consider. Have I missed something? Do you have an aggressive dog and, if so, how do you deal with it?  I love hearing from readers. 

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