Abstract
A 40-year-old woman presented complaining of frequent urination and pain during while urination. She had been treated with Tranilast (300mg/day) for thirty-five days for the prevention of post-operative keroid. A urinalysis, however, showed asceptic hematuria. She therefore was treated with antibiotics but no improvement in her symptoms was observed. A cystoscopic examination revealed a reddish and edematous vesical mucosa. The symptoms disappeared thirty days after terminating the treatment with Tranilast.
