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Brain Parasite (Cuterebra) in Cats



Surgical removal of a parasite from a cat’s brain has never been reported. However, there are medications to relieve symptoms caused by the parasite. Anti-epileptic drugs help prevent seizures, while intravenous (IV) fluids ensure the cat maintains good nutritional status.


A drug treatment designed to kill the parasite is also available, but only used if the symptoms have been occurring for less than one week. After a longer period, it is likely the parasite has died.


Living and Management


After initial treatment, periodic neurological evaluations are recommended. Many cats return to their normal state, but in some cases complications may continue. These depend on the amount of damage done by the parasite, and can include uncontrolled seizures, compulsive circling, and other behavioral changes.



The primary method of prevention is to limit cats to the indoors, especially during summer months.



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