... reduction in frequency and amplitude of contractions of the ureter hyper-tonified with barium chloride. No change in frequency or amplitude of contractions was observed with isoproterenol. Besides, our data explain why Β-agonist drugs are of very little value in the treatment of renal colic due to spasms...

... was administered for 2 weeks to two groups of female Wistar rats. The contractile responses of urinary bladders to electrical field stimulation, carbachol, ATP and KCl, and the relaxant responses to ATP, adenosine and isoproterenol were examined. Urinary bladder strips were collected for light microscopic...