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Determining the optimal dose size and dosing frequency in pharmacotherapy is crucial for achieving therapeutic effectiveness while minimizing adverse effects. This article explores the methodologies employed in determining these parameters, focusing on their significance and interplay to tailor dosing regimens.Dose Size: Dose size refers to the amount of a drug administered in a single dose. It is determined based on the drug's pharmacodynamics and pharmacokinetics properties and...
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A loading dose is an essential pharmacological strategy to rapidly achieve the target plasma drug concentration necessary for an immediate therapeutic effect. This approach is especially critical for drugs characterized by slow absorption or extended half-lives, where delaying therapeutic plasma levels could compromise treatment outcomes. By administering a loading dose, clinicians ensure a prompt onset of drug action, even for agents with complex pharmacokinetic profiles.Achieving steady-state...
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Does splitting a tablet obtain the accurate dose?: A systematic review protocol.

Kanika Chaudhri1,2,3, Madeleine Kearney1, Gian Luca Di Tanna1

  • 1The George Institute for Global Health, Sydney.

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Tablet splitting is common for dose adjustment, but accuracy concerns exist. This review synthesizes evidence on whether splitting tablets provides an accurate dose, crucial for patient safety and effective treatment.

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Area of Science:

  • Pharmacology and Pharmaceutics
  • Evidence Synthesis and Systematic Reviews

Background:

  • Physical manipulation of manufactured drug doses, including tablet splitting, is prevalent in primary care.
  • While beneficial for swallowing, dose flexibility, and cost, concerns exist regarding potential inaccuracies in split tablet portions.
  • This systematic review protocol addresses the need to summarize existing literature on tablet splitting's effect on dose accuracy.

Purpose of the Study:

  • To systematically review and synthesize the current evidence on the impact of tablet splitting on dose accuracy.
  • To evaluate the reliability of split tablet doses in clinical practice.

Main Methods:

  • Comprehensive electronic database searches (EMBASE, MEDLINE, CINAHL, Cochrane Library) up to January 2020.
  • Inclusion of studies investigating any drug administered via a split tablet.
  • Independent screening and data extraction by two reviewers, focusing on dose accuracy via drug content or weight variability.

Main Results:

  • The systematic review will synthesize evidence on the effect of tablet splitting on dose accuracy.
  • Findings will be based on data extracted from eligible studies, assessing drug content or weight variability.

Conclusions:

  • The study will provide evidence to determine if splitting a tablet yields an accurate half dose.
  • Results will inform clinical practice regarding the safety and efficacy of administering split tablets.