4040 LyoTec® Lyophilization Stoppers: Forward Thinking Innovation Combines Demonstrated Design Success With Expertise In Testing And Raw Material Selection

West Pharmaceutical Services, Inc., a global leader in innovative solutions for injectable drug administration, has released its 4040 LyoTec^® Westar™ Select Ready-to-Sterilize (RS) and Ready-to-Use (RU) Lyophilization Stoppers, the first components of a portfolio of vial closures to be developed using West’s elastomer formulation, 4040/40 gray. By combining the demonstrated success of an established design and significant levels of expertise in testing and raw material selection, we have achieved improvements and optimized benefits across the spectrum of packaging attributes required for performance, quality, and safety of the packaging and delivery of lyophilized drug products.

West’s new 4040 LyoTec stoppers use a state-of-the-art 4040 formulation developed with multi-dimensional elastomer expertise and a quality by design development approach. In doing so, we have achieved a broad range of improvements and optimized benefits required for manufacturing performance, functionality, quality and safety, enabling our customers to confidently deliver their drug product to patients in the safest and most effective way possible.