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Related Concept Videos

Antihypertensive Drugs: Angiotensin II Receptor Blockers01:30

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In the renin-angiotensin-aldosterone system, a hormone called angiotensin II plays a crucial role. It binds to the AT1 receptors in vascular smooth muscles coupled with Gq proteins. The activation of these receptors activates an enzyme called phospholipase C, which releases two molecules: inositol trisphosphate and diacylglycerol. These molecules cause a chain reaction that leads to the phosphorylation of myosin light chains and promotes interaction between actin and myosin, leading to smooth...
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The renin-angiotensin-aldosterone system (RAAS) is an intricate physiological pathway involving numerous enzymes and hormones, including renin, angiotensin-converting enzyme (ACE), angiotensin I and II, and aldosterone. Imbalances within this system increase the production of angiotensin II and aldosterone. Increased angiotensin II levels promote vasoconstriction and blood pressure elevation. Concurrently, higher aldosterone levels stimulate sodium and water reabsorption in the kidneys,...
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Dose-Response Relationship: Potency and Efficacy01:22

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The potency of a drug is the measure of its ability to produce a biological response and can be compared by looking at the half-maximum effective concentration or EC50 values of different drugs. A lower EC50 value indicates higher potency of the drug. In the dose–response curve of two antihypertensive drugs, candesartan and irbesartan, a significant difference is observed in their EC50 values. A lower EC50 value for candesartan indicates that it is more potent than irbesartan, as it...
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As primary excretory organs, the kidneys maintain homeostasis by removing waste substances from the bloodstream. They comprise over a million units called nephrons, which serve as the kidney's functional units.
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Angiotensin-converting enzyme (ACE), a vital component of the renin-angiotensin-aldosterone system, is abundant in lung endothelial cells. ACE converts the inactive decapeptide, angiotensin I, into the active octapeptide, angiotensin II. This potent vasoconstrictor narrows blood vessels, increasing resistance to blood flow and elevating blood pressure. Angiotensin II also stimulates aldosterone production, encouraging kidney cells to reabsorb more sodium and water from urine, thereby increasing...
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Renal clearance is a crucial parameter in pharmacokinetics that quantifies the rate at which the kidneys excrete a drug. It represents a constant fraction of the central volume of distribution containing the drug that the kidney eliminates per unit of time.
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Irbesartan (a comprehensive profile).

Ibrahim A Darwish1, Hany W Darwish2, Ahmed H Bakheit3

  • 1Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia; Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, Egypt.

Profiles of Drug Substances, Excipients, and Related Methodology
|January 19, 2021
PubMed
Summary

Irbesartan is a key non-peptide angiotensin II receptor antagonist for treating hypertension and diabetic nephropathy. This review details its properties, preparation, and therapeutic applications for better understanding and use.

Keywords:
Angiotensin II receptor antagonistsChromatographic analysisDosing informationElectrochemical analysisHypertensionIrbesartanMethods of preparationPharmacological-toxicological propertiesPhysical-chemical propertiesSpectrometric analysis

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Area of Science:

  • Pharmacology
  • Medicinal Chemistry
  • Nephrology

Background:

  • Irbesartan is a non-peptide angiotensin II receptor antagonist.
  • It is widely used for hypertension and diabetic nephropathy.
  • It is prescribed for hypertensive patients with type 2 diabetes, elevated creatinine, and proteinuria.

Purpose of the Study:

  • To provide a comprehensive literature review of irbesartan.
  • To cover its description, chemical properties, and therapeutic uses.
  • To discuss preparation, analytical, pharmacological, and dosing information.

Main Methods:

  • Critical comprehensive review of existing literature on irbesartan.
  • Analysis of chemical structure, properties, and therapeutic applications.
  • Examination of preparation, analytical, and pharmacological data.

Main Results:

  • Detailed description of irbesartan, including names, formulae, and elemental composition.
  • Elucidation of its physical-chemical and pharmacological-toxicological properties.
  • Summary of therapeutic uses, preparation methods, analytical techniques, and dosing.

Conclusions:

  • Irbesartan effectively treats hypertension and diabetic nephropathy by blocking AT1 receptors.
  • The review consolidates essential information for researchers and clinicians.
  • Understanding irbesartan's profile aids in optimizing patient treatment strategies.