Vardenafil-induced relaxation and cyclic nucleotide levels in normal and obstructed rat urinary bladder.
OBJECTIVE To study the effects of the phosphodiesterase-5 inhibitor, vardenafil, on contraction and cyclic nucleotide levels in isolated detrusor preparations with and without mucosa, from control rats and rats with partial urethral obstruction (PUO) and intact mucosa. MATERIALS AND METHODS Female Sprague-Dawley rats were divided into groups subjected to PUO for 14 days (six), and sham-operated co