VU0134992 is a blocker of the inward rectifier potassium channel Kir4.1 (IC50 = 970 nM).1 It also inhibits Kir3.1/3.2, Kir3.1/3.4, and Kir4.2 with similar potency. VU0134992 induced diuresis, natriuresis, and kaliuresis in Sprague-Dawley rats suggesting
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