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Dosage Regimens: Designs and Approaches01:28

Dosage Regimens: Designs and Approaches

Designing a dosage regimen, which refers to the manner of drug administration, is a complex process involving the selection of drug dose, route, and frequency. This process is underpinned by pharmacokinetic parameters derived from tests and population averages. These parameters are then tailored to patient-specific variables such as diagnosis, demographics, and allergy status. Once therapy commences, therapeutic response monitoring is critical and achieved through clinical and physical...
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Related Experiment Video

Updated: Jun 17, 2026

High-throughput Image Analysis of Tumor Spheroids: A User-friendly Software Application to Measure the Size of Spheroids Automatically and Accurately
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Designer steroids.

Ray Kazlauskas1

  • 1National Measurement Institute, Australian Sports Drug Testing Laboratory, 1 Suakin St., Pymble, NSW, 2073, Australia. ray.kazlauskas@measurement.gov.au

Handbook of Experimental Pharmacology
|December 19, 2009
PubMed
Summary

Athletes are increasingly using dangerous designer steroids to evade detection in sports. New detection methods are crucial for identifying these novel performance-enhancing substances and ensuring fair play.

Area of Science:

  • Pharmacology
  • Sports Science
  • Analytical Chemistry

Background:

  • Anabolic steroids have a long history of use and prohibition in sports by organizations like the World Anti-Doping Agency (WADA).
  • Athletes continue to seek performance enhancement, leading to the emergence of novel doping agents.
  • Traditional detection methods are challenged by the chemical modifications in newer substances.

Purpose of the Study:

  • To highlight the growing threat of designer steroids in sports doping.
  • To emphasize the lack of safety and efficacy data for these clandestine substances.
  • To discuss the development of advanced analytical techniques for detecting designer steroids.

Main Methods:

  • Review of existing literature on anabolic steroid development and detection.

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  • Analysis of emerging trends in doping agent synthesis and evasion tactics.
  • Discussion of advanced analytical techniques, including gas and liquid chromatography coupled with mass spectrometry.
  • Main Results:

    • Designer steroids are chemically modified to evade current anti-doping detection protocols.
    • The safety and efficacy of designer steroids remain unevaluated, posing significant risks to athletes.
    • Clandestine manufacturing and distribution channels are facilitating athlete access.

    Conclusions:

    • The development and use of designer steroids represent a significant challenge to anti-doping efforts.
    • Advanced analytical technologies are essential for the timely detection of these novel doping agents.
    • Vigilance from laboratories and enforcement agencies is critical in combating the use of designer steroids in sports.