Several drugs have been reported to alter thyroid function tests in dogs. These include glucocorticoids, potentiated sulfonamides and anticonvulsants, such as phenobarbital. Many other drugs have been reported to affect thyroid function in humans and other species.
Calcium oxalate (CaOx) was the most common (47 percent) mineral in feline uroliths submitted to the Minnesota Urolith Center during 2003 (Table 1). More than two-thirds of feline nephroliths were composed of CaOx.