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In the United States, obesity is a prominent concern. It is linked to heightened mortality rates due to increased occurrences of conditions such as hypertension, atherosclerosis, coronary artery disease, and diabetes compared to nonobese individuals. A patient is classified as obese if their actual body weight surpasses the ideal or desirable body weight by 20%, based on Metropolitan Life Insurance Company data. Ideal body weights consider average weights and heights for males and females...
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Weight-based dosing in medication use: what should we know?

Sheng-Dong Pan1, Ling-Ling Zhu2, Meng Chen3

  • 1Division of Medical Administration, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China.

Patient Preference and Adherence
|April 26, 2016
PubMed
Summary

Weight-based dosing is complex and not always superior to fixed dosing. Clinicians need to understand specific drug guidelines and patient factors for optimal medication administration.

Keywords:
body weightdosage and administrationefficacymedication safetypediatricspharmacoeconomics

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Area of Science:

  • Pharmacology
  • Clinical Pharmacy
  • Drug Dosing Strategies

Background:

  • Weight-based dosing is challenging due to poor awareness and adherence among clinicians.
  • Understanding the clinical relevance and appropriate circumstances for weight-based dosing is crucial.

Purpose of the Study:

  • To review the latest developments in weight-based dosing strategies.
  • To inform clinicians about the appropriate use of weight-based dosing in various clinical scenarios.

Main Methods:

  • A literature search was conducted using PubMed to identify relevant studies on weight-based dosing.

Main Results:

  • Weight-based dosing applicability depends on clinical indications, patient physiology, and specific medications.
  • In some adult cases, weight-based dosing is superior (e.g., hydrocortisone, vancomycin), while fixed dosing is better in others (e.g., cyclosporine).
  • Pediatric dosing superiority (weight-based vs. body surface area-based vs. age-based) varies by medication; fixed dosing is not always inferior, and pharmacogenetic testing showed no advantage over weight-adjusted dosing for 6-mercaptopurine.

Conclusions:

  • Weight-based dosing strategies require careful consideration of individual drug information and patient-specific factors.
  • Familiarity with drug-specific dosage and administration, alongside recent advancements, is essential for safe and effective medication use.
  • Further research opportunities exist in clinical practice to optimize medication administration through improved dosing strategies.