Educational Articles

Cats + Medications & Supplements

  • Fluconazole is an antifungal medication used off label in cats, dogs, and small mammals to treat fungal infections, especially those in the brain and spinal cord. It is given by mouth in the form of a tablet or liquid suspension and is also available as an injection for hospital use. It should be used with caution in pets with liver or kidney disease, or pregnant or lactating pets.

  • Fludrocortisone acetate is given by mouth and is used off label to treat hypoadrenocorticism (Addison’s disease) and hyperkalemia. Give as directed by your veterinarian. Side effects are uncommon but may include vomiting. Do not use in pets that are allergic to it or in lactating pets without using a milk replacer. If a negative reaction occurs, please call your veterinary office.

  • Fluocinolone + acetonide DMSO (brand name Synotic®) is applied topically and is labeled to treat ear inflammation in dogs. It is also used off-label to treat ear infections in cats. Give as directed. Side effects are rare but may include temporary hearing loss or skin reactions. Do not use on pets allergic to corticosteroids or DMSO, on pets with a ruptured ear drum or pets that are pregnant.

  • Fluoroquinolone topical formulations are used to treat bacterial infections. They are used off label to treat external ear infections by topically applying the medication directly to the ear canal. Side effects may include increased redness or inflammation and should be discontinued and call your veterinarian if this occurs.

  • Fluoxetine is given by mouth and is used on and off label to treat various behavioral conditions. Common side effects include sleepiness and decreased appetite. If a negative reaction occurs, call your veterinary office.

  • Fluralaner is given by mouth or applied topically and is used to treat flea and tick infestations, and also off-label to treat certain types of mange and mites. Give as directed. Side effects are uncommon but may include stomach upset or neurologic symptoms. Do not use in pets with a history of seizures. If a negative reaction occurs, please call the veterinary office.

  • Fluticasone propionate (Flovent) is commonly used off label to treat asthma and other chronic tracheobronchial diseases. It is administered as an inhaled medication via an aerosol canister and a delivery device. Side effects are uncommon but include upper airway irritation or infection. This medication should not be used during an acute bronchospasm.

  • Folic acid is given by mouth or injection and is used to treat folic acid deficiencies due to intestinal or pancreatic disease, or due to the use of certain medications. Give as directed by your veterinarian. Side effects are not common but may include stomach upset. Do not use in pets with a known sensitivity. If a negative reaction occurs, please call your veterinary office.

  • Frunevetmab is a formulation of feline anti-nerve growth factor antibodies used to control osteoarthritis pain in cats. This medication is given by an injection under the skin, usually at the veterinary clinic. Side effects may include vomiting, diarrhea, appetite loss, itching, scabbing and hair loss on the head and neck, and pain at the injection site. Call your veterinary office immediately if you suspect an overdose or an adverse reaction to the medication.

  • Furosemide is given by mouth or injection and is used on and off label to treat many conditions, including congestive heart failure and fluid retention. Common side effects include increased urination, diarrhea, or constipation. Do not use in pets that are allergic to it or in those that are unable to make urine.