Effects of ozolinone, a diuretic active metabolite of etozoline, on renal function. I. Clearance studies in dogs.
The renal action of 3-methyl-4-oxo-5-piperidino-thiazolidine-2-ylidine (ozolinone), a metabolite of the diuretic etozoline (Elkapin), was studied in anaesthetized dogs after i.v. injection and compared with the renal effects of furosemide. The diuretic action of ozolinone was rapid in onset and of short duration. The smallest effective i.v. dose was 1 mg . kg-1. Maximal diuretic capacity was reached at 50 mg . kg-1 i.v. Fractional tubular sodium reabsorption was depressed to 67% at maximal effective doses. Ozolinone had similar renal actions to those of furosemide. Like furosemide, ozolinone increased renal blood flow, slightly decreased glomerular filtration rate, depressed tubular chloride reabsorption more than sodium reabsorption, increased potassium excretion, lowered the pH of urine, decreased urinary osmolarity towards isotonicity and depressed tubular PAH secretion. As regards the effective doses and the maximal changes of tubular sodium excretion, ozolinone was somewhat less potent than furosemide.[1]References
- Effects of ozolinone, a diuretic active metabolite of etozoline, on renal function. I. Clearance studies in dogs. Greven, J., Heidenreich, O. Naunyn Schmiedebergs Arch. Pharmacol. (1978) [Pubmed]
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