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Educational Articles

  • Chronic kidney disease (once called chronic kidney failure) is mainly a problem in mature and senior cats (seven years and older). Unfortunately, once the kidneys are damaged, they have minimal ability to recover. However, with proper management, most CKD cases progress very slowly. This handout describes the clinical signs of the condition, along with causes, diagnosis, treatment, and nutritional management.

  • Chronic upper respiratory tract disease in cats results from inflammation of any part of the upper respiratory tract. Many conditions contribute to this. Treatment is based on the underlying cause.

  • Chylothorax is a life-threatening condition caused by chyle leaking out of the thoracic duct into the chest cavity, causing lung compression and the inability of the lungs to fill with air. This occurs more commonly in purebred cats. The causes, diagnostics, treatments, and prognosis are explained in this handout.

  • Cidofovir ophthalmic is a topical antiviral medication used to treat viral eye infections, such as feline herpesvirus-1, in cats. This medication must be compounded by a veterinarian or veterinary pharmacy before use in cats. Side effects may include a mild stinging sensation or redness of the eyes. Pregnant women should not handle this medication.

  • Cimetidine is given by mouth and is used off label to treat various gastrointestinal conditions related to acid production, such as ulcers and reflux. Side effects are uncommon and have not been documented in animals. Do not use in pets that are allergic to it or other histamine2 blockers. If a negative reaction occurs, please call your veterinary office.

  • Ciprofloxacin ophthalmic (brand name Ciloxan(R)) is an antibacterial agent used in the treatment of eye infections in dogs and cats. Its use in dogs and cats is off label or extra label. This medication should not be used in dogs that are allergic to quinolones. Some medications may interact with ciprofloxacin, so it is important to tell your veterinarian about any medications that your pet is taking. If a negative reaction occurs, please call your veterinary office.

  • Ciprofloxacin is a systemic fluoroquinolone antibiotic used to treat bacterial infections. It is often given by mouth, but an injectable form is also available. The most common side effect is gastrointestinal distress, but other side effects are possible. It is contraindicated in young or dehydrated pets, or in pets with liver or kidney disease. It should not be the first-choice fluoroquinolone for veterinary patients.

  • Cisapride is used off label and is given by mouth to treat gastrointestinal motility disorders in cats, dogs, and small mammals. Common side effects include vomiting, diarrhea, and abdominal discomfort. Do not use in pets that are allergic to it or in pets with conditions that would be made worse by increased intestinal movement. If a negative reaction occurs, please call your veterinary office.

  • Clarithromycin is given by mouth and is used off label to treat certain bacterial infections in several animal species. Side effects include diarrhea, vomiting, appetite changes, stomach pain/cramps, or skin redness in cats. Do not use in pets that are allergic to it or other macrolide antibiotics, in rabbits, gerbils, guinea pigs, hamsters, or horses greater than 4 months old. If a negative reaction occurs, please call your veterinary office.

  • Clindamycin is an antibiotic used to treat a range of bacterial infections in dogs and cats. It is often used to treat wounds, pyoderma, abscesses, bone and dental infections, and toxoplasmosis. Its use to treat certain infections, such as toxoplasmosis, is off label or extra-label. Clindamycin is available in oral liquid, tablets, and capsules. It has a very bitter taste, so you may need to disguise the medication in food. It is important to never give a cat a dry pill, if using capsules or tablets, as it can damage the esophagus, the muscular tube that delivers food from the mouth to the stomach (esophagitis). If you suspect an overdose or an adverse reaction to the medication, call your veterinary office immediately.