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Related Concept Videos

Factors Influencing Drug Absorption: Pharmaceutical Parameters01:28

Factors Influencing Drug Absorption: Pharmaceutical Parameters

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Solid dosage forms such as tablets and capsules undergo rigorous manufacturing processes to ensure stability and effectiveness. Their dissolution and absorption properties are influenced significantly by the choice of excipients (inactive ingredients that serve various roles in the formulation), and the methodology applied during production. The manufacturing parameters, such as compression force and granulation techniques, significantly affect dissolution rates. Elevated compression forces...
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In Vitro Drug Dissolution: Alternative Methods01:17

In Vitro Drug Dissolution: Alternative Methods

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Alternative drug dissolution methods include the rotating bottle, intrinsic dissolution test, peristalsis, and the Franz diffusion cell method. The rotating bottle method involves meticulously rotating tightly capped controlled-release beads in a temperature-controlled bath. Periodic decanting of samples allows for residue assay, followed by refilling with fresh medium and testing at various pH levels to emulate the gastrointestinal tract conditions.In contrast, the intrinsic dissolution test...
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Bioavailability Enhancement: Drug Solubility Enhancement01:16

Bioavailability Enhancement: Drug Solubility Enhancement

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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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In Vitro Drug Dissolution: Compendial Testing Models I01:13

In Vitro Drug Dissolution: Compendial Testing Models I

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Compendial dissolution methods are standardized procedures defined by pharmacopeias to evaluate the rate at which a drug dissolves in a specific medium. These methods ensure batch-to-batch consistency, enable quality control, and support the prediction of drug bioavailability. They are critical for both immediate and modified-release drug products.The apparatuses used for dissolution testing differ in their design and mechanical function, but all aim to simulate the physiological environment of...
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Factors Affecting Dissolution: Particle Size and Effective Surface Area01:23

Factors Affecting Dissolution: Particle Size and Effective Surface Area

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Dissolution kinetics, an essential aspect of oral drug delivery, is significantly influenced by the drug's particle size. According to the Noyes-Whitney dissolution model, the dissolution rate correlates directly with the drug's surface area. The larger the surface area, the higher the drug's solubility in water, leading to a faster drug dissolution rate. Reducing particle size increases the effective surface area, enhancing the dissolution process. Micronization and nanosizing are...
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Drug Dissolution: Requirements and Profile Comparison01:14

Drug Dissolution: Requirements and Profile Comparison

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The acceptance criteria for dissolution profile data are anchored in Q values, representing the percentage of drug dissolved within a specified period. This assessment unfolds in three stages:First Stage: The test passes if all six drug dosage units are equal to or greater than Q plus 5%; otherwise, the sample proceeds to the second stage.Second Stage: The average of twelve units must be equal to or greater than Q, with no unit falling below Q - 15% to pass; if not, it progresses to the final...
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Related Experiment Video

Updated: Mar 18, 2026

Solubility of Hydrophobic Compounds in Aqueous Solution Using Combinations of Self-assembling Peptide and Amino Acid
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Support Tools in Formulation Development for Poorly Soluble Drugs.

Gudrun A Fridgeirsdottir1, Robert Harris2, Peter M Fischer1

  • 1School of Pharmacy, University of Nottingham, Nottingham, UK.

Journal of Pharmaceutical Sciences
|July 3, 2016
PubMed
Summary
This summary is machine-generated.

Formulating poorly water-soluble drugs remains challenging. This review details various tools and methods, from simple experiments to complex computational models, to guide the selection of optimal drug formulation strategies for enhanced bioavailability.

Keywords:
Biopharmaceutics Classification Systemamorphousbioavailabilityformulationsolid dispersion

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Area of Science:

  • Pharmaceutical Science
  • Drug Delivery
  • Formulation Development

Background:

  • Poor water solubility is a significant challenge in developing new drugs, impacting bioavailability.
  • Selecting an appropriate formulation strategy is crucial for immediate-release oral drug products.
  • Factors influencing formulation choice include API properties, dose, shelf life, and manufacturability.

Purpose of the Study:

  • To review and explain the various tools available for selecting optimal drug formulation strategies.
  • To guide researchers in choosing the best approach for solubility enhancement of poorly water-soluble drugs.

Main Methods:

  • Overview of existing methods for formulation strategy selection.
  • Discussion of tools ranging from in vitro/in vivo experiments and high-throughput screening to computational modeling.
  • Analysis of molecular parameters like molecular weight, lipophilicity (logP), and solubility in prediction models.

Main Results:

  • A comprehensive list of support tools for formulation development is presented.
  • Different approaches vary in complexity and efficiency for predicting formulation success.
  • Guidance maps, decision trees, and computational modeling offer advanced prediction capabilities.

Conclusions:

  • Choosing the optimal formulation route requires careful consideration of multiple factors.
  • A range of tools exists to aid in selecting the most effective strategy for poorly water-soluble drugs.
  • Understanding and utilizing these tools can streamline the drug development process.