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The Side Effects of Clavamox for Cats

| Updated September 26, 2017

If your cat is diagnosed with a bacterial infection, there's a good chance your vet will prescribe Clavamox for treatment. Clavamox, a combination of amoxicillin trihydrate and clavulanate potassium, is used to treat various infections, including those of the skin, bone, bladder, mouth and many wounds. While most cats tolerate Clavamox quite well, some will develop side effects from the drug. Report any side effects to your veterinarian immediately.

Clavamox Side Effects

Clavamox's primary side effects involve the gastrointestinal tract. Some cats might experience vomiting, diarrhea or appetite loss. Even if the cat doesn't develop true diarrhea, you might notice that his stools are looser than normal. Your vet might advise you to feed Clavamox with food to minimize stomach problems.

Allergic Reactions

Some cats are allergic to penicillin, and will react to the amoxicillin in Clavamox. Allergic reactions include itching, facial swelling and breathing difficulties. Cats known to have a penicillin allergy should never receive Clavamox.