To Investigate the efficacy of diclofenac 50 mg (NonSteroidal Anti-Inflammatory Drug) in the treatment of nocturnal polyuria. Twenty four patients (23 male and 1 female) with a mean age of 61 years (range 34-0) dagnosed with nocturnal polyuria were recruited. The study perioad comprised 2 weeks of either placebo or active medication. Following one-week rest period, patients were crossed over to…