A 35-year-old yellow-naped Amazon parrot (Amazona ochrocephala auropalliata) was presented for gradually increasing inappetence, ataxia, weakness, and lethargy. Radiographic and ultrasonographic findings were strongly suggestive of atherosclerosis. Isoxsuprine, a peripheral vasodilator demonstrated to be of benefit in humans with intermittent limb pain, weakness, and lameness secondary to occlusive vascular disease, was selected for treatment. The bird's clinical signs resolved during treatment but recurred after varying periods of time when the medication was stopped intermittently. Nearly 3 years after the initial examination, the parrot was doing well on isoxsuprine therapy, with normal prehension of food with its feet and no recurrence of clinical signs.
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Vol. 21 • No. 3