Renal failure following bowel cleansing with a sodium phosphate purgative.

effects as the number of administered doses increases. Our patient’s liver function was deranged, possibly due to granulomatous hepatitis, which has been described in this setting [2]. Treatment with prednisolone and anti-tuberculous chemotherapy was based on advice found in the literature [2,4,5]. Prednisolone at a starting dose of 40mg daily, tapering over 3 months as response occurs, plus isoniazid and rifampicin for 6 months, represents current optimal therapy. Prognosis appears good, though some renal impairment may persist. We have described a patient with acute renal failure due to tubulointerstitial nephritis and glomerulonephritis following intravesical BCG treatment who recovered with steroids and antituberculous chemotherapy. The diagnosis should be considered in at-risk patients, and established with early renal biopsy, as the outcome appears to be better when treatment is initiated promptly before the interstitial lesion can progress to scarring and fibrosis.