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Fentanyl is an opioid medication used off-label to treat pain in cats and dogs. It is often given as an injection in hospital, but patches may be prescribed to deliver fentanyl transdermally (through the skin) for pets at home. This handout describes common side effects, risk factors, and drug interactions. If a negative reaction occurs, please call your veterinary office.
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Ferrous sulfate is given by mouth and is used off label to treat iron-deficiency. Use as directed by your veterinarian. Common side effects include gastrointestinal upset such as discomfort, constipation, nausea, vomiting, and diarrhea. Do not use in pets that are allergic to it. If a negative reaction occurs, please call your veterinary office.
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To be classified as a fever of unknown origin (FUO), the body temperature must be above 103.5°F (39.7°C) for longer than a few days, with no obvious underlying cause based on history and physical examination. A fever is beneficial to the body, but if a fever remains above 106°F (41.1°C) for more than a few days several consequences occur within the body and can be life threatening. If your pet has a fever, your veterinarian will perform a thorough physical examination, perform diagnostic blood tests, urine culture, and possibly other diagnostic tests. Antibiotics are often prescribed. Cats that have persistent fever or a fever that waxes and wanes must undergo a thorough work-up so that the cause of fever can be discovered and treated before irreversible damage occurs.
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To be classified as a fever of unknown origin (FUO), the body temperature must be above 103.5°F (39.7°C) for longer than a few days, with no obvious underlying cause based on history and physical examination. A fever is beneficial to the body, but if a fever remains above 106°F (41.1°C) for more than a few days, several consequences occur within the body and can be life threatening. If your pet has a fever, your veterinarian will perform a thorough physical examination, perform diagnostic blood tests, urine culture, and possibly other diagnostic tests. Antibiotics are often prescribed.
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Fibrocartilaginous embolus (FCE) or fibrocartilaginous embolic myelopathy (FCEM) refers to a condition caused by a piece of fibrocartilaginous material thought to originate from an intervertebral disc, lodging in an artery or vein, causing decreased blood flow to an area of the spinal cord. Confirmatory diagnosis requires MRI. Treatment is primarily supportive.
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Fibrocartilaginous embolus (FCE) or fibrocartilaginous embolic myelopathy (FCEM) refers to a condition caused by a piece of fibrocartilaginous material thought to originate from an intervertebral disc, lodging in an artery or vein, causing decreased blood flow to an area of the spinal cord. This condition is more common in younger, large-breed dogs; however, certain small breeds and all ages can be affected. Confirmatory diagnosis requires MRI. Treatment is primarily supportive. Recurrence is unlikely.
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Fibrosarcomas are a type of soft tissue cancer that is common in dogs. They are most often found on the limbs and trunk of the body but can also be found in the nasal cavity or mouth. They usually originate from the connective tissue of the skin and beneath the skin, but occasionally from the bone. Older dogs and certain breeds (especially large breeds) are at greater risk. Fibrosarcomas are often painful. Surgery is the treatment of choice for fibrosarcomas, with or without radiation and/or chemotherapy. With proper and prompt treatment, favorable outcomes are possible.
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Usually caused by a bite from another cat, fight wound infections can lead to the development of an abscess (a pocket of pus) or cellulitis (pain and swelling in the area of the bite). A cat’s sharp canine teeth can easily puncture the skin of another cat, leaving small, deep, wounds that seal over quickly, so it is important that your cat is seen by a veterinarian for treatment as soon as possible after being bitten.
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Finasteride is given by mouth and is used off-label to treat benign prostatic hypertrophy (enlarged prostate) in intact male dogs, and may also be used for adrenal problems in ferrets. Give as directed. Side effects are uncommon. Do not use it in sexually developing animals or in females, including pregnant or nursing females. If a negative reaction occurs, please call your veterinarian.
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This handout discusses how to find reliable information for your pet on the internet. Recommendations are to always seek out trusted sources, such as your own veterinary clinic, veterinary schools, and those sites with content written by veterinarians. Try to avoid sites offering homemade cures, are heavily weighted with opinions, or offer prescription medications without requiring a veterinarian’s prescription.