Powder Testing Techniques for Tablet Manufacture - Pharmaceutical Technology

Latest Issue

Latest Issue
PharmTech Europe

Powder Testing Techniques for Tablet Manufacture
This article considers the different conditions to which the powder is subjected in the tableting process, and discusses which powder properties should be measured to accurately reflect likely powder behavior in the process.

Pharmaceutical Technology
Volume 36, Issue 3, pp. s12-s16


Within the pharmaceutical industry there is increasing emphasis on processing efficiency and more effectively controlled manufacture. In production, it is impossible to eliminate all the possible sources of variability, but it is feasible to compensate for them and control their impact. This relies on identifying, measuring, and controlling those parameters that define processing efficiency and the quality of the finished product.

In solid-dosage manufacture, achieving this goal requires a relevant and sensitive powder testing toolkit capable of reliably generating parameters that can be directly correlated with process performance. Key to this is the ability of a technique to effectively simulate the specific processing environment, which, as an analysis of tableting reveals, can vary considerably. Instruments that combine established techniques, such as shear and bulk property testing, with newer methodologies, such as dynamic testing, can be valuable. The user can then tailor testing to the specific application, and access the most complete information for process design, optimization, and control.

Tim Freeman* is managing director and Jamie Clayton is operations manager at Freeman Technology, 1 Miller Court, Severn Drive, Tewkesbury, Gloucestershire, GL20 8DN, United Kingdom, tel. +44(0)1684.851.551, fax. +44(0)1684.851.552,
, http://www.freemantech.co.uk/

*To whom all correspondence should be addressed.


1. M. Glodek et al., "Process Robustness: PQRI White Paper," online, http://www.pqri.org/, Oct., 2005.

2. G. Carlson and B. Hancock, AAPS Annual Meeting and Exposition (Atlanta, GA, 2008).

3. R. Freeman, Powder Technol. 174 (1–2) 25-33 (2007).


blog comments powered by Disqus
LCGC E-mail Newsletters

Subscribe: Click to learn more about the newsletter
| Weekly
| Monthly
| Weekly

FDASIA was signed into law two years ago. Where has the most progress been made in implementation?
Reducing drug shortages
Breakthrough designations
Protecting the supply chain
Expedited reviews of drug submissions
More stakeholder involvement
Reducing drug shortages
Breakthrough designations
Protecting the supply chain
Expedited reviews of drug submissions
More stakeholder involvement
View Results
Eric Langerr Outsourcing Outlook Eric LangerTargeting Different Off-Shore Destinations
Cynthia Challener, PhD Ingredients Insider Cynthia ChallenerAsymmetric Synthesis Continues to Advance
Jill Wechsler Regulatory Watch Jill Wechsler Data Integrity Key to GMP Compliance
Sean Milmo European Regulatory WatchSean MilmoExtending the Scope of Pharmacovigilance Comes at a Price
From Generics to Supergenerics
CMOs and the Track-and-Trace Race: Are You Engaged Yet?
Ebola Outbreak Raises Ethical Issues
Better Comms Means a Fitter Future for Pharma, Part 2: Realizing the Benefits of Unified Communications
Better Comms Means a Fitter Future for Pharma, Part 1: Challenges and Changes
Source: Pharmaceutical Technology,
Click here