IRBESARTAN - irbesartan tablet

国: アメリカ合衆国

言語: 英語

ソース: NLM (National Library of Medicine)

有効成分:

IRBESARTAN (UNII: J0E2756Z7N) (IRBESARTAN - UNII:J0E2756Z7N)

から入手可能:

A-S Medication Solutions

投与経路:

ORAL

処方タイプ:

PRESCRIPTION DRUG

適応症:

Irbesartan is indicated for the treatment of hypertension. It may be used alone or in combination with other antihypertensive agents. Irbesartan is indicated for the treatment of diabetic nephropathy with an elevated serum creatinine and proteinuria (>300 mg/day) in patients with type 2 diabetes and hypertension. In this population, Irbesartan reduces the rate of progression of nephropathy as measured by the occurrence of doubling of serum creatinine or end-stage renal disease (need for dialysis or renal transplantation) (see CLINICAL PHARMACOLOGY: Clinical Studies ). Irbesartan is contraindicated in patients who are hypersensitive to any component of this product. Do not coadminister aliskiren with Irbesartan in patients with diabetes (see PRECAUTIONS: Drug Interactions ).

製品概要:

Product: 50090-2642 NDC: 50090-2642-0 30 TABLET in a BOTTLE

認証ステータス:

Abbreviated New Drug Application

製品の特徴

IRBESARTAN - IRBESARTAN TABLET
A-S MEDICATION SOLUTIONS
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IRBESARTAN TABLETS USP
RX ONLY
WARNING: FETAL TOXICITY
When pregnancy is detected, discontinue Irbesartan as soon as
possible.
Drugs that act directly on the renin-angiotensin system can cause
injury and death to the
developing fetus. See WARNINGS: FETAL TOXICITY.
DESCRIPTION
Irbesartan is an angiotensin II receptor (AT subtype) antagonist.
Irbesartan is a non-peptide compound, chemically described as a
2-butyl-3-[_p_-(_o_-1_H_-tetrazol-5-
ylphenyl)benzyl]-1,3-diazaspiro [4.4]non-1-en-4-one.
Its empirical formula is C
H N O, and the structural formula:
Irbesartan is a white to off-white crystalline powder with a molecular
weight of 428.5. It is a nonpolar
compound with a partition coefficient (octanol/water) of 10.1 at pH of
7.4. Irbesartan is slightly soluble
in alcohol and methylene chloride and practically insoluble in water.
Irbesartan is available for oral administration in unscored tablets
containing 75 mg, 150 mg, or 300 mg
of irbesartan. Inactive ingredients include: lactose monohydrate,
microcrystalline cellulose,
croscarmellose sodium, hypromellose, and magnesium stearate.
CLINICAL PHARMACOLOGY
MECHANISM OF ACTION
Angiotensin II is a potent vasoconstrictor formed from angiotensin I
in a reaction catalyzed by
angiotensin-converting enzyme (ACE, kininase II). Angiotensin II is
the principal pressor agent of the
renin-angiotensin system (RAS) and also stimulates aldosterone
synthesis and secretion by adrenal
cortex, cardiac contraction, renal resorption of sodium, activity of
the sympathetic nervous system, and
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smooth muscle cell growth. Irbesartan blocks the vasoconstrictor and
aldosterone-secreting effects of
angiotensin II by selectively binding to the AT angiotensin II
receptor. There is also an AT receptor
in many tissues, but it is not involved in cardiovascular homeostasis.
Irbesartan is a specific competitive antagonist of AT receptors with a
much greater affinity (more than
8500-fold) for the AT receptor than for the AT r