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Related Concept Videos

Bioavailability Enhancement: Drug Solubility Enhancement01:16

Bioavailability Enhancement: Drug Solubility Enhancement

255
Body:Bioavailability is a critical factor in determining a drug's effectiveness. It refers to the proportion of a drug that enters the circulation when introduced into the body and is, as a result, able to have an active effect. Enhancing bioavailability is essential for drugs with poor solubility, as it can significantly impact their therapeutic efficacy. Various methods are employed to increase the solubility of drugs, thereby enhancing their bioavailability.Micronization and nanonization are...
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Bioavailability Enhancement: Drug Permeability Enhancement01:27

Bioavailability Enhancement: Drug Permeability Enhancement

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Body:After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt...
197
Bioavailability Enhancement: Determination and Conceptual Approaches in Overcoming Bioavailability Problems01:22

Bioavailability Enhancement: Determination and Conceptual Approaches in Overcoming Bioavailability Problems

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Body:Bioavailability is a critical pharmacological concept that measures the extent and rate at which an active drug ingredient or therapeutic moiety enters the systemic circulation, remaining unchanged. It's a pivotal factor in determining a drug's efficacy and safety.The Biopharmaceutics Classification System (BCS) plays an essential role in drug development by categorizing drugs into four classes based on their solubility and permeability. This classification aids in understanding drug...
208
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention01:05

Bioavailability Enhancement: Drug Stability Enhancement and GI Retention

207
Body:Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
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Bioavailability: Overview01:17

Bioavailability: Overview

409
Bioavailability refers to the proportion of an administered drug that reaches the systemic circulation in its active, unaltered form. It is a crucial pharmacokinetic parameter that determines the effectiveness of a drug in achieving its intended therapeutic outcomes. The route of administration significantly influences bioavailability, with intravenous administration achieving 100% bioavailability as the drug directly enters the bloodstream. In contrast, oral administration often results in...
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Bioavailability: Overview01:13

Bioavailability: Overview

4.4K
Bioavailability refers to the proportion of an unaltered drug that, after administration, enters the systemic circulation and can be distributed to the desired action site. Factors such as gastrointestinal (GI) absorption and liver biotransformation influence the bioavailability of a drug when it is administered orally. When a drug is administered intravenously, it enters the systemic circulation directly; by definition, its bioavailability is assumed to be 100%. The bioavailability of an...
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Related Experiment Video

Updated: Jan 29, 2026

Author Spotlight: Exploring Photodynamic Therapy with Curcumin in a Murine Model for Oral Candidiasis
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Enhancing Curcumin Oral Bioavailability Through Nanoformulations.

Vinod S Ipar1, Anisha Dsouza2, Padma V Devarajan3

  • 1Institute of Chemical Technology, Mumbai, India.

European Journal of Drug Metabolism and Pharmacokinetics
|February 17, 2019
PubMed
Summary
This summary is machine-generated.

Curcumin shows therapeutic promise but faces bioavailability challenges. Nano-based delivery systems offer a promising strategy to enhance curcumin

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Area of Science:

  • Pharmacology and Drug Delivery
  • Natural Product Chemistry

Background:

  • Curcumin exhibits diverse therapeutic activities but suffers from poor aqueous solubility, low permeability, and P-glycoprotein (P-gp) efflux.
  • Active metabolites of curcumin also present therapeutic potential, necessitating strategies for their effective delivery.

Purpose of the Study:

  • To review and discuss strategies for the oral bioenhancement of curcumin, focusing on nano-based approaches.
  • To highlight the advantages of nanosystems in overcoming curcumin's pharmacokinetic limitations.

Main Methods:

  • Review of conventional bioenhancement techniques including cyclodextrin complexes, solid dispersions, and self-emulsifying drug delivery systems.
  • Detailed examination of various nano-based delivery systems for curcumin, such as nanosuspensions, lipid-based systems (liposomes, solid lipid nanoparticles), nanoemulsions, and polymeric nanoparticles.
  • Inclusion of miscellaneous nanosystems like inorganic nanoparticles, micelles, phytosomes, and dendrimers.

Main Results:

  • Nanosystems offer significant advantages for improving curcumin's bioavailability and therapeutic efficacy.
  • Various carrier-based nanosystems, including lipid-based formulations and polymeric nanoparticles, have been extensively explored for curcumin delivery.
  • Targeted oral delivery of curcumin using intact nanoparticles is a promising future direction.

Conclusions:

  • Nano-based approaches represent a powerful strategy to overcome the bioavailability challenges associated with curcumin.
  • The development of advanced nanosystems holds significant potential for harnessing curcumin's therapeutic benefits as a 'wonder nutraceutical'.
  • Targeted nanoparticle delivery systems could revolutionize the oral administration of curcumin for enhanced therapeutic outcomes.