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Clavamox For Dogs: Usage, Dosage, & Side Effects

Clavamox For Dogs: Usage, Dosage, & Side Effects | BetterVet

Clavamox is a commonly prescribed antibiotic for a variety of bacterial infections. If your dog has recently been prescribed Clavamox then you might be wanting to know a bit more about it, whether it has any side effects, and why it has been prescribed for your pet. 


What is Clavamox for Dogs?


Clavamox is a brand name for amoxicillin-clavulanate, otherwise known as amoxiclav. It usually comes in tablet form, and there is a liquid formulation licensed for use in puppies.

Clavamox is a broad-spectrum antibiotic, and it’s particularly favored by veterinarians for its ability to treat a wide variety of infections. It contains Amoxicillin (a type of penicillin) as well as Clavulanic Acid, and it’s this combination that increases the range of bacteria it is effective against. 

What is Clavamox Used For?


Clavamox is used to treat infections caused by Staphylococcus, Streptococcus, and E. coli. A vet might prescribe Clavamox to treat infections of the skin such as those secondary to allergies, respiratory infections, dental infections, ear infections, or urinary tract infections. Clavamox is not effective against fungi or viruses.

Your veterinarian will always need to examine your dog before prescribing Clavamox, to determine what type of infection your dog has, what type of bacteria might be involved, and to ensure they choose the right drug for the bug. The wrong antibiotic can mean that the infection won’t clear up or that it could promote resistance to that antibiotic. Sometimes your veterinarian will want to do some further testing such as taking swabs or samples to culture in a lab before prescribing Clavamox.


What is the Dose of Clavamox for Dogs?


The Clavamox dosage for dogs depends on their body weight, so the vet will need to weigh your dog to calculate the dose. This is to ensure that the right concentration builds up in your dog’s blood in order to tackle the infection. Too low a dose could mean the infection is not treated properly, leaving bacteria behind at the end of the course and promoting resistance to Clavamox. Too high a dose could cause side effects for your pet. 

It’s important never to give Clavamox without first discussing the dose with your vet. You shouldn’t give your dog old antibiotics from previous prescriptions as they may be out of date and therefore less effective. You should always follow the veterinarian’s instructions. It's especially important that you complete the full course. Too short a course can mean the infection can come back as some bacteria are left behind. It’s common to see significant improvement in your pet’s condition within 2-3 days of starting Clavamox, but it can take a lot longer than this to fully clear the infection. 


How is Clavamox Administered?


Clavamox is a tablet that is administered orally. If your dog will not take the pills by themself, try hiding the tablets in a small amount of food to entice them to take it. Your veterinarian can help guide you on how to administer the tablets. 

Liquid Clavamox is also available and is licensed for use in puppies who are much harder to give tablets to. This liquid is easy to give using a syringe or pipette either into a little food or milk or straight into your puppy's mouth.

Finally, Clavamox is available in an injectable form, which your vet might give as a starting dose before sending your dog home with a course of oral tablets. The injection is short-acting, so it should always be followed up by completing the full course of tablets at home.


Does Clavamox Have any Side Effects?


Clavamox is a very safe medicine, but, like all medicines, it can have side effects, although they are usually mild and rare. Many pet parents worry about Clavamox side effects, but you can always discuss this with your veterinarian to put your mind at rest.

The most common side effects from Clavamox are vomiting and diarrhea, as antibiotics can upset the normal bacterial flora in your dog’s tummy. This is usually a mild effect that should pass, but if severe, you should stop giving the medicine straight away and speak to your vet. 

Allergic reactions are rare. Symptoms of an allergic reaction include skin rashes, swelling of the face, breathing difficulties, and anaphylaxis. If you notice any of these symptoms after giving your dog Clavamox, they must be seen by a veterinarian right away. You tell your veterinary doctor if you have a Penicillin allergy as handling Clavamox could be a risk to you.

It is not known whether Clavamox is safe to be used during pregnancy and lactation, as the studies to investigate this are usually not safe to carry out. If your dog is pregnant or lactating, do not give Clavamox, or any other medicine, without seeking advice from your veterinarian first.  




Clavamox is a widely prescribed antibiotic for dogs that  is used to treat common infections such as skin infections, respiratory infections, as well as urinary tract, ear, and dental infections. You must always follow your veterinary doctor’s instructions for dosage, frequency, and length of treatment to ensure that your pet recovers well. Like all drugs, it can have side effects, but it is generally a very safe medicine, with mild and rare side effects. It’s also a very cheap antibiotic and is readily available. 




What is Clavamox for dogs?

Clavamox is a broad-spectrum antibiotic used to treat a wide range of infections. It contains the active ingredients Amoxicillin and Clavulanic Acid.


What is Clavamox for dogs used for?

Clavamox is used for a range of infections and is active against Staphylococcus, Streptococcus, and E. coli. It is commonly prescribed for infections of the respiratory tract, urinary tract, and skin, as well as dental and ear infections.


Does Clavamox have any side effects?

Clavamox is a generally safe drug, with a small risk of some mild side effects including vomiting and diarrhea. More severe side effects such as allergic reactions and anaphylaxis are very rare.


Is Clavamox safe for my dog?

Clavamox is a safe drug and is very widely and commonly used. It has a low risk of mild side effects such as vomiting and diarrhea. Like all medicines, there is always a very small risk of severe allergic reactions. 

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