METOLAZONE tablet

البلد: الولايات المتحدة

اللغة: الإنجليزية

المصدر: NLM (National Library of Medicine)

العنصر النشط:

METOLAZONE (UNII: TZ7V40X7VX) (METOLAZONE - UNII:TZ7V40X7VX)

متاح من:

Bryant Ranch Prepack

طريقة التعاطي:

ORAL

نوع الوصفة الطبية :

PRESCRIPTION DRUG

الخصائص العلاجية:

Metolazone is indicated for the treatment of salt and water retention including: •  edema accompanying congestive heart failure; •  edema accompanying renal diseases, including the nephrotic syndrome and states of diminished renal function. Metolazone is also indicated for the treatment of hypertension, alone or in combination with other antihypertensive drugs of a different class. Mykrox® tablets, a more rapidly available form of metolazone, are intended for the treatment of new patients with mild to moderate hypertension. A dose titration is necessary if Mykrox® tablets are to be substituted for Zaroxolyn® tablets and other formulations of metolazone that share its slow and incomplete bioavailability, in the treatment of hypertension. The routine use of diuretics in an otherwise healthy woman is inappropriate and exposes mother and fetus to unnecessary hazard. Diuretics do not prevent development of toxemia of pregnancy and there is no evidence that they are useful in the treatment of developed toxemia.

ملخص المنتج:

NDC: 63629-7875-2: 90 Tablets in a BOTTLE NDC: 63629-7875-1: 30 Tablets in a BOTTLE

الوضع إذن:

Abbreviated New Drug Application

خصائص المنتج

METOLAZONE- METOLAZONE TABLET
BRYANT RANCH PREPACK
----------
METOLAZONE TABLETS, USP
RX ONLY
DO NOT LNTERCHANGE:
DO NOT INTERCHANGE ZAROXOLYN TABLETS AND OTHER FORMULATIONS
OF METOLAZONE THAT SHARE ITS SLOW AND INCOMPLETE BIOAVAILABILITY
AND ARE NOT THERAPEUTICALLY EQUIVALENT AT THE SAME DOSES TO
MYKROX TABLETS, A MORE RAPIDLY AVAILABLE AND COMPLETELY
BIOAVAILABLE METOLAZONE PRODUCT. FORMULATIONS BIOEQUIVALENT TO
ZAROXOLYN AND FORMULATIONS BIOEQUIVALENT TO MYKROX SHOULD
NOT BE INTERCHANGED FOR ONE ANOTHER.
DESCRIPTION
Metolazone Tablets, USP for oral administration contain 2.5 mg, 5 mg
or 10 mg of
metolazone USP, a diuretic/saluretic/antihypertensive drug of the
quinazoline class.
Metolazone has the molecular formula C
H
ClN O S, the chemical name 7-chloro-
1,2,3,4-tetrahydro-2-methyl-4-oxo-3-_o_-tolyl-6-quinazolinesulfonamide,
and a molecular
weight of 365.84. The structural formula is:
Metolazone is only sparingly soluble in water, but more soluble in
plasma, blood, alkali,
and organic solvents.
Inactive Ingredients: colloidal silicon dioxide, magnesium stearate,
microcrystalline
cellulose and dye: 2.5 mg - D&C red No. 30 and FD&C blue No. 2; 5 mg -
FD&C blue No.
2; 10 mg - D&C yellow No. 10 and FD&C yellow No. 6.
CLINICAL PHARMACOLOGY
Metolazone is a quinazoline diuretic, with properties generally
similar to the thiazide
diuretics. The actions of metolazone result from interference with the
renal tubular
mechanism of electrolyte reabsorption. Metolazone acts primarily to
inhibit sodium
reabsorption at the cortical diluting site and to a lesser extent in
the proximal convoluted
tubule. Sodium and chloride ions are excreted in approximately
equivalent amounts. The
increased delivery of sodium to the distal tubular exchange site
results in increased
potassium excretion. Metolazone does not inhibit carbonic anhydrase. A
proximal action
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16
16
3
3
of metolazone has been shown in humans by increased excretion of
phosphate and
magnesium ions and by a markedly increased fractional excretion of
sodium in pa