NDAORALTABLETPriority Review
Approved
Sep 1974
Lifecycle
LOE Approaching
Competitive Pressure
30/100
Mechanism of Action
CLINICAL PHARMACOLOGY Chlorthalidone is an oral diuretic with prolonged action (48–72 hours) and low toxicity. The major portion of the drug is excreted unchanged by the kidneys. The diuretic effect of the drug occurs in approximately 2.6 hours and continues for up to 72 hours. The mean half-life…