Ticrynafen, a uricosuric antihypertensive diuretic

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Abstract
Ticrynafen, a diuretic-uricosuric also effective as an antihypertensive, was compared in single doses with several other diuretics. Over an 8-hr period, a 250-mg dose exerted natriuretic activity comparable to that of 25 mg of chlorthalidone and 50 mg of ethacrynic acid; a 500-mg dose was comparable to 50 mg chlorthalidone and 50 mg hydrochlorothiazide. Ticrynafen combined with furosemide had an additive effect, whereas a combination with hydrochlorothiazide was not additive. In both doses ticrynafen was a uricosuric and this effect was maintained when given with furosemide and hydrochlorothiazide, both of which individually were slightly antiuricosuric. Ticrynafen may be useful in patients requiring a diuretic in whom it is desirable to avoid hyperuricemia.