<chemical> Thiazide diuretic also used as an antihypertensive agent. ... Pharmacological action: antihypertensive agents, diuretics, thiazide. ... Chemical name: 2H-1,2,4-Benzothiadiazine-7-sulfonamide, 6-chloro-3-(cyclopentylmethyl)-3,4-dihydro-, 1,1-dioxide ... (12 Dec 1998) ...