Educational Articles
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Phytosphingosine topical (brand names Douxo®, SkinGuard®) is an anti-inflammatory agent, with antibacterial and antifungal properties. It is used in cats and dogs to help relieve itching in certain skin conditions and help restore the skin barrier. Phytosphingosine topical may be part of a combination product.
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The domestic pigeon includes over 300 breeds, all descending from the rock dove. They originated in Eurasia, but are now found all over the world. They come in many color combinations and their plumage can include anything from feathered feet to crested, maned, or hooded heads. They are generally hardy birds that are easy to tame and care for. As with any pet, pigeons require regular, routine veterinary health checkups.
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Pigmentary keratitis is a discoloration of the cornea due to chronic inflammation and is most common in brachycephalic breeds. In many cases, complete resolution cannot be achieved, but the condition can be stopped or slowed down if the underlying cause can be identified and treated. Surgery and medications may be used to help address the problem.
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Pilocarpine is used off-label and given by mouth in food to treat neurogenic keratoconjunctivitis sicca, and used topically in the eye to diagnose cranial nerve III problems. Common side effects include irritation of the eye, and more severe side effects include vomiting, diarrhea, increased salivation and urination, and coughing. Do not use in pets that are allergic to it or that have secondary glaucoma.
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Pimobendan is a medication given by mouth as a tablet or liquid, used to treat congestive heart failure in dogs. Its use in cats is off label. The most common side effects include decreased appetite and diarrhea.
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The common rabbit pinworm, Passalurus ambiguus, is an intestinal parasite. It does not posea serious health threat to rabbits, but it can cause uncomfortable itching and skin inflammation or redness around the anus. Rabbits become infected with pinworms by eating feces that contain pinworm eggs. Pinworms are challenging to treat because rabbits are coprophagic, so can potentially reinfect themselves during treatment.
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Piroxicam (brand name: Feldene) is given by mouth in the form of a capsule to treat pain and some types of cancer in dogs. Do not use this medication in pets that are allergic to it, or in pets concurrently using corticosteroids or other NSAIDs. If a negative reaction occurs, please call your veterinary office.
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Pituitary macroadenomas are large tumors of the pituitary gland that are either functional (secrete hormones) or non-functional (do not secrete hormones). The clinical signs depend on the type of macroadenoma, though become severe over time in either case. Diagnosis requires specialized CT or MRI imaging. This handout explains the effects of macroadenomas in cats and the treatment options available.
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Pituitary macroadenomas are large tumors of the pituitary gland that are either functional (secrete hormones) or non-functional (do not secrete hormones). The most common functional pituitary macroadenoma in the dog secretes the hormone ACTH, causing increased cortisol levels and Cushing’s disease. Non-functional macroadenomas cause clinical signs through compression of nearby structures resulting in vision changes, diabetes insipidus, and neurologic disorders. This handout explains the effects of these tumors on dogs, how they are diagnosed, and the treatment options available.
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Clinical signs of pituitary tumors depend on whether the tumor is functional or non-functional. Functional tumors can cause Cushing's disease in dogs and can cause acromegaly and insulin-resistant diabetes in cats. Non-functional pituitary tumors can enlarge to cause neurological signs. Diagnosis is based on the history, bloodwork, urinalysis, and sometimes a CT scan or MRI. Medical therapy is often the treatment of choice for functional tumors. Radiation therapy is another option and is usually the primary treatment for non-functional tumors.
