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Related Concept Videos

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Consider a region consisting of several individual conductors with a definite charge density in the region between these conductors. The second uniqueness theorem states that if the total charge on each conductor and the charge density in the in-between region are known, then the electric field can be uniquely determined.
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Commonality between BCS and TCS.

Vinod P Shah1, Flavian Ştefan Rădulescu2, Dalia Simona Miron3

  • 1Pharmaceutical Consultant, North Potomac, MD, USA.

International Journal of Pharmaceutics
|May 22, 2016
PubMed
Summary

The biopharmaceutics classification system (BCS) and topical drug classification system (TCS) offer scientific pathways for drug approval waivers. These systems aim to increase medicine accessibility and affordability while ensuring drug product quality and safety.

Keywords:
BCSBiowaiverIn vitro releaseTCSTopical drug classification system

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Area of Science:

  • Pharmaceutical Sciences
  • Drug Regulatory Affairs

Background:

  • Biopharmaceutics Classification System (BCS) and Topical Drug Classification System (TCS) are established frameworks.
  • Both systems aim to provide biowaivers, reducing regulatory burden without compromising drug product quality.

Purpose of the Study:

  • To elucidate the scientific principles underlying BCS and TCS.
  • To highlight their role in facilitating biowaivers and ensuring medicine accessibility and affordability.

Main Methods:

  • BCS evaluation based on drug substance solubility and permeability.
  • TCS evaluation based on dosage form composition and in vitro release rate.

Main Results:

  • Both BCS and TCS utilize drug release and dissolution as core principles.
  • Successful application of these systems can lead to increased availability of safe and effective medicines.

Conclusions:

  • BCS and TCS provide scientifically sound approaches for regulatory flexibility.
  • These systems are crucial for maintaining drug product quality while enhancing consumer access to medicines.