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Related Concept Videos

Drug Dissolution: Requirements and Profile Comparison01:14

Drug Dissolution: Requirements and Profile Comparison

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...
In Vitro Drug Dissolution: Compendial Testing Models I01:13

In Vitro Drug Dissolution: Compendial Testing Models I

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...
In Vitro Drug Dissolution: Compendial Testing Models II01:09

In Vitro Drug Dissolution: Compendial Testing Models II

Various dissolution methods are utilized to assess a drug’s dissolution rate, including the flow-through cell, paddle-over-disk, cylinder, and reciprocating disk methods.The flow-through cell apparatus (USP (United States Pharmacopeia) method 4) comprises a reservoir for the dissolution medium and a pump that propels the medium through the cell containing the test sample. This method is crucial for assessing modified-release dosage forms with minimally soluble active ingredients, maintaining...
In Vitro Drug Release Testing: Overview, Development and Validation01:10

In Vitro Drug Release Testing: Overview, Development and Validation

In vitro dissolution and drug release tests assess how quickly and how much of a drug is released from its dosage form into an aqueous medium under standardized laboratory conditions. These tests are essential tools in pharmaceutical development and quality assurance, offering insight into the drug's performance before clinical use.During formulation development, dissolution testing identifies incomplete or inconsistent drug release issues. It also supports decisions on selecting the optimal...
Bioequivalence studies: Biowaivers01:13

Bioequivalence studies: Biowaivers

In certain scenarios, in vitro dissolution tests can replace in vivo bioequivalence studies. This is particularly true when a drug product, though available in varying strengths, maintains proportional similarity in its active and inactive ingredients. In such cases, the need for in vivo bioequivalence studies for lower strength variants may be waived, provided dissolution tests and in vivo studies on the highest strength yield satisfactory results.Bioequivalence can be indicated through...
In Vitro Drug Dissolution: Alternative Methods01:17

In Vitro Drug Dissolution: Alternative Methods

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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An In Vitro Dissolution Determination of Multi-Index Components in Tibetan Medicine Rhodiola Granules
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Dissolution testing for generic drugs: an FDA perspective.

Om Anand1, Lawrence X Yu, Dale P Conner

  • 1U.S. Food and Drug Administration, Center for Drug Evaluation and Research, Office of Generic Drugs, Rockville, Maryland 20855, USA. om.anand@fda.hhs.gov

The AAPS Journal
|April 12, 2011
PubMed
Summary
This summary is machine-generated.

In vitro dissolution testing aids generic drug approval by ensuring quality and safety. This method can waive in vivo bioequivalence studies, reducing regulatory burden for FDA generic drug development.

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Area of Science:

  • Pharmacokinetics and Drug Development
  • Regulatory Science

Background:

  • In vitro dissolution testing is crucial for generic drug product development and approval.
  • It serves routine stability and quality control for various dosage forms.

Purpose of the Study:

  • To summarize the role of dissolution testing in the US approval of safe and effective generic drugs.
  • To highlight how dissolution testing supports regulatory decision-making.

Main Methods:

  • Review of dissolution testing applications in generic drug development.
  • Discussion of validated dissolution method development for different dosage forms.
  • Analysis of dissolution testing's role in regulatory processes.

Main Results:

  • Dissolution testing can waive in vivo bioequivalence (BE) study requirements.
  • It provides BE documentation for Scale Up and Post Approval Changes (SUPAC).
  • It predicts potential dose-dumping of modified-release products with alcohol.

Conclusions:

  • In vitro dissolution testing is vital for generic drug approval, ensuring product quality.
  • It significantly reduces regulatory burden and unnecessary human studies for the FDA.
  • Dissolution testing supports the development of safe and effective generic medicines.