Zeniquin for Cats

When it's time to battle a tough infection, your vet may prescribe marbofloxacin, also known by its branded name, Zeniquin. Depending on the severity of the infection, your cat may have to take this medication for up to a month. Generally, Zeniquin has a low risk of side effects, but keep an eye open to make sure your cat doesn't have problems tolerating it.

Ginger cat looking upwards
Give your cat her Zeniquin as directed, and watch for side effects.
credit: Photodisc/Photodisc/Getty Images

Zeniquin: A Fluoroquinolone Antibiotic

A broad-spectrum antibiotic in the fluoroquinolone class of antibiotics, Zeniquin kills bacteria by inhibiting bacterial enzymes. It's valuable because it's one of the few effective antibiotics against Pseudomonas infections, common in chronic and recurrent infections, often occurring in the ear or in bacterial cystitis. If your cat's been having a tough time shaking an infection, or your vet determined Pseudomonas bacteria are the root of her problem, marbofloxacin may be just what the doctor ordered.

Follow Dosing Instructions

Available in tablet format, in 25 mg, 50 mg, 100 mg and 200 mg doses, your vet will prescribe a treatment regimen based on your cat's weight and condition. Pilling a cat usually isn't fun -- for you or your cat -- and it may be tempting to discontinue the Zeniquin if you see improvement. Administer the medicine precisely as directed by your vet; not completing the entire course can result in a relapse or can promote a resistance to the antibiotic, rendering it ineffective.

Zeniquin Side Effects

Though uncommon, potential side effects of marbofloxacin include decreased appetite and activity, weight loss, dehydration, vomiting, skin reddening, drooling, facial swelling and tremors. Such symptoms, as well as potential allergic reactions -- difficulty breathing, hives and facial swelling -- require immediate veterinary attention. If your cat tolerates Zeniquin with no problem, make sure she has access to fresh drinking water.

Zeniquin Cautions

Despite its healing powers, Zeniquin is not for all cats. Pregnant cats and lactating queens should not take this antibiotic, nor should younger cats who are still growing, as there's a risk of cartilage damage in young pets. Cats with kidney or liver disease and central nervous system disorders -- such as seizures -- should use the medication with extreme caution. Marbofloxacin can interact with other medication, so make sure your vet knows exactly what medication your cat takes, including supplements.