Investigation the introduction possibility on human experimental program with diuretics into the practical subject of pharmacology - Introduction possibility using diuretics on human experiment in pharmacologic study program

Safety All six subjects completed a trial. After Furosemide administration, hypotensive adverse event caused by excessive urination was observed in a female subject. No adverse event and no large change of the vital signs were observed in the other study drug administration in the female subject and the other study subjects. In addition, any safety parameters in blood and urine were not deviated from those reference range. The effectiveness The total urine volume after the study drug administration were Furosemide 1,903mL, Spironolactone 1,230mL, Tolvaptan 2,021mL, Placebo 963mL. The urine volume in all diuretics were significantly different compared to placebo. In addition, the urine collection period which showed the largest urine volume was matched with the tmax of each diuretics. And the duration of urine volume increase was also expressed the characteristic for the elimination half-life of the each administered diuretics. From the change of the total amount of electrolyte excretion, the distinction of Furosemide seemed to be possibility, but additional consideration would be necessary for clearly distinction of other diuretics.