Comparative Pharmacology
Head-to-head clinical analysis: FOSINOPRIL SODIUM AND HYDROCHLOROTHIAZIDE versus TRICHLORMAS.
Peer-Reviewed Evidence
Head-to-head clinical analysis: FOSINOPRIL SODIUM AND HYDROCHLOROTHIAZIDE versus TRICHLORMAS.
FOSINOPRIL SODIUM AND HYDROCHLOROTHIAZIDE vs TRICHLORMAS
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Fosinopril is an ACE inhibitor that inhibits the conversion of angiotensin I to angiotensin II, reducing vasoconstriction and aldosterone secretion. Hydrochlorothiazide is a thiazide diuretic that inhibits the sodium-chloride symporter in the distal convoluted tubule, increasing excretion of sodium and water.
TRICHLORMAS is a sedative-hypnotic agent. Its mechanism of action is not fully understood but is believed to involve potentiation of GABAergic inhibition in the central nervous system, similar to other chloral derivatives. It is metabolized to trichloroethanol, which is the active hypnotic compound.
1 tablet (fosinopril 10 mg/hydrochlorothiazide 12.5 mg or fosinopril 20 mg/hydrochlorothiazide 12.5 mg) orally once daily. Maximum dose: fosinopril 80 mg/hydrochlorothiazide 50 mg per day.
500 mg orally once daily at bedtime, increased as needed to a maximum of 1 g per day in divided doses; for insomnia, 1-2 g orally at bedtime.
None Documented
None Documented
Fosinoprilat: 11.5 h (terminal); Hydrochlorothiazide: 6-15 h (biphasic, terminal phase 10-15 h).
Terminal elimination half-life is approximately 8-11 hours for the parent drug in adults with normal renal function. In patients with hepatic impairment, half-life may be prolonged up to 30 hours; in severe renal impairment, half-life of metabolites may increase significantly.
Fosinopril: 45% renal, 55% biliary/fecal; Hydrochlorothiazide: >95% renal (unchanged).
Primarily renal via glomerular filtration and tubular secretion; about 70-80% of the dose excreted unchanged in urine within 24 hours. The remainder is metabolized to trichloroethanol (active) and trichloroacetic acid; these metabolites are also eliminated renally.
Category A/B
Category C
Thiazide Diuretic
Thiazide Diuretic