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  • Title: Pharmacodynamics and pharmacokinetics of the basic triamterene analogue dimethylaminohydroxypropoxytriamterene.
    Author: Priewer H, Kraft H, Mutschler E.
    Journal: Arzneimittelforschung; 1985; 35(11):1688-91. PubMed ID: 4091871.
    Abstract:
    The diuretic, natriuretic and potassium retaining effects of dimethylaminohydroxypropoxytriamterene (RPH 2823), a basic triamterene derivative, were studied in male Wistar rats. Compared to triamterene (TA) RPH 2823 has a pronounced effect on urine volume and on the excretion of sodium; in addition it possesses a higher antikaliuretic potency than TA. In combination with furosemide, 2.5 mumol/kg RPH 2823 can avoid the kaliuresis of 25 mumol/kg furosemide. The pharmacokinetics of RPH 2823 after i.v. application of 1 mg/kg and 5 mg/kg were studied in female rats. The substance is not metabolized. RPH 2823 has a terminal elimination half-life of 3 h. About 47% of the given dose are excreted unchanged with urine. Furthermore, the volume of distribution VD beta and the total body clearance were calculated.
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