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Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture
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A material sparing test to predict punch sticking during formulation development.

Daryl M Simmons1, Daniel S Gierer

  • 1Three Rivers Community College, Norwich, CT 06360, USA. simmonsdsms@aol.com

Drug Development and Industrial Pharmacy
|December 21, 2011
PubMed
Summary
This summary is machine-generated.

A new predictive test effectively screens tablet formulations for punch sticking potential. Reformulating based on test results enabled successful manufacturing, preventing defective tablets.

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Area of Science:

  • Pharmaceutical Sciences
  • Drug Delivery
  • Manufacturing Technology

Background:

  • Punch sticking is a common manufacturing issue leading to defective tablets.
  • Existing methods for predicting punch adhesion are limited.
  • A material-sparing predictive test is needed for formulation development.

Purpose of the Study:

  • To develop a predictive test for formulation adhesion to tablet punches.
  • To compare different punch types for their susceptibility to adhesion.
  • To guide formulation strategies to prevent punch sticking.

Main Methods:

  • Two proprietary compounds (A and B) were formulated with common excipients.
  • Formulations were tested for adhesion using 1/2" FFBE, 1/4" SRC, and 1/4" FF punches.
  • Adhesion was evaluated on a rotary tablet press and compaction simulator.

Main Results:

  • Formulation accumulation on punches predicted punch sticking and tablet defects.
  • Flat surfaced punches (FFBE, FF) showed higher adhesion than SRC punches.
  • Reduced punch size (1/4") significantly decreased material consumption.

Conclusions:

  • The developed test accurately predicts punch sticking potential.
  • Reformulation based on test insights led to successful, stick-free manufacturing.
  • The test enables efficient screening and optimization of tablet formulations.