How Much Clavamox Should One Give a Cat?

Cuteness may earn compensation through affiliate links in this story.

Clavamox for kittens and cats is often prescribed to treat bacterial infections. The Clavamox dosage for cats is typically 62.5 milligrams given twice per day, but this may vary depending on the condition being treated. Only give Clavamox when it is prescribed by your veterinarian and be sure to follow all of the instructions given.


Only give Clavamox when it is prescribed by your veterinarian and be sure to follow all of the instructions given.
Image Credit: Mariia Skovpen/iStock/GettyImages

Video of the Day

About Clavamox for cats

Clavamox is a brand name for amoxicillin-clavulanic acid, or amoxicillin and clavulanate potassium. It is a broad-spectrum antibiotic that is available as a liquid or a pill. Your veterinarian may prescribe Clavamox to treat conditions such as skin infections, wounds from a fight, gum disease, bacterial respiratory infections, or urinary tract infections.


While the medication is fast-acting and begins to take effect in a couple of hours, you may not see visible improvements until after the second or third day. The medication typically leaves the system after about 24 hours but may linger for a longer period if your cat has kidney or liver problems.


It is a prescription antibiotic, so you will not be able to buy it over the counter to treat your cat. Clavamox is a penicillin-type antibiotic and should not be given if your cat has ever had a bad reaction to penicillin or other similar medications in the past.

Clavamox dosage for cats

Talk to your vet for the correct Clavamox dosage.
Image Credit: Foto Klokan / 500px/500Px Plus/GettyImages

Your veterinarian will let you know the specific dosage and frequency for administering Clavamox. While the standard dosage for a cat is 62.5 milligrams, the Clavamox dosing chart may vary depending on the age and size of your cat. Be aware that the human form of amoxicillin-clavulanic acid, called Augmentin, cannot be substituted for Clavamox, as the dosages differ and will likely be too much for your small cat.


Administering Clavamox medication

Both the tablet and liquid form of the medication are given orally. You can mix in the medication with your cat's food if she will eat it. Otherwise, you will need to manually administer the Clavamox by hand. You can also try putting the pill in a treat or using a pill popper. Be sure to complete the entire schedule of antibiotics.


Properly store the medication between doses. Liquid Clavamox must be refrigerated, and it is only good for a period of 10 days. The pills must be kept dry, so don't open the blister pack containing the pill until you are ready to give it to your cat.

Clavamox side effects

Clavamox may cause mild gastrointestinal side effects, such as vomiting, upset stomach, and diarrhea. Giving the medication with food can help to minimize these side effects, and your veterinarian may recommend probiotics to help maintain healthy gut bacteria and minimize diarrhea. Contact your vet if the side effects continue or worsen.


In rare cases, some cats may experience an allergic reaction to Clavamox. Some signs of an allergic reaction include irregular breathing, difficulty breathing, rash, hives, swelling of the face, or fever. An allergic reaction can be very dangerous for your cat, so call your vet immediately if you see any of these symptoms or if your cat stops eating.


Clavamox may react badly with other medications.
Image Credit: ramustagram/iStock/GettyImages

Clavamox may react badly with certain medications, so be sure to go over all of the supplements and medicines you are giving your cat. Some medications that may interact with Clavamox include blood thinners, pain medication, and other antibiotics, such as erythromycin and tetracycline.