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Analytical approach for lubricant characterization of excipients using the surface replication method
Shinichi Saito1, Takashi Osamura1, Tadatsugu Tanino1
1Department of Pharmaceutical Technology, Sawai Pharmaceutical Co. Ltd, Suita-shi, Osaka, Japan.
Drug Development and Industrial Pharmacy
|May 5, 2021
Summary
Lubricants are crucial for preventing tablet sticking during manufacturing. The Binding Identification for Net Detriment (BIND) method effectively quantified lubricant performance, with magnesium stearate showing the best results in reducing powder adhesion.
Area of Science:
- Pharmaceutical Sciences
- Materials Science
- Chemical Engineering
Background:
- Pharmaceutical lubricants prevent powder adhesion to tablet die walls, a common cause of tableting failure.
- Raloxifene hydrochloride (RH) presents significant adhesion challenges in tablet formulations.
- Traditional methods for evaluating lubricant efficacy, such as visual inspection and ejection force measurement, lack quantitative precision.
Purpose of the Study:
- To evaluate the impact of different pharmaceutical lubricants on the tableting properties of Raloxifene hydrochloride (RH).
- To assess the efficacy of the Binding Identification for Net Detriment (BIND) surface replication method in quantifying lubricant performance.
- To compare the binding properties of stearic acid, sodium stearyl fumarate, calcium stearate, and magnesium stearate in RH formulations.
Main Methods:
- Utilized the Binding Identification for Net Detriment (BIND) surface replication method to analyze powder adhesion to the die wall.
- Formulated Raloxifene hydrochloride (RH) with four different lubricants: stearic acid, sodium stearyl fumarate, calcium stearate, and magnesium stearate.
- Compared BIND results with conventional methods like visual observation and ejection force measurements.
Main Results:
- Unlubricated RH preparations exhibited high powder adhesion density (61.7%).
- All tested lubricants significantly reduced powder adhesion density: stearic acid (40.2%), sodium stearyl fumarate (29.7%), calcium stearate (23.0%), and magnesium stearate (13.6%).
- BIND provided quantitative data on lubricant effectiveness, outperforming traditional methods in assessing binding properties.
Conclusions:
- The Binding Identification for Net Detriment (BIND) method is a promising tool for the quantitative assessment of pharmaceutical lubricant performance.
- Magnesium stearate demonstrated superior efficacy in reducing powder adhesion and improving tableting properties for Raloxifene hydrochloride formulations.
- BIND enables precise evaluation and optimization of lubricant selection for challenging pharmaceutical formulations, surpassing conventional assessment techniques.
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