West’s plungers achieve superior functional performance for characteristics such as breakloose and glide force. Plungers are ISO 11040 compliant. Custom elastomer formulations are available.

A Ready-to-Use, Steam-Sterilized Solution for Prefillable Glass Syringes

Westar^® Ready-to-Use (RU) steam-sterilized plungers can mitigate risk for chemical and physical deterioration of the component through an optimized steam sterilization cycle that, when compared to high-dose gamma irradiation, may:

• Minimize impact on the elastomers’ physical characteristics, and on chemical oxidation and degradation during the plungers’ shelf-life
• Decrease the numbers and lower the levels of extractables, with less potential for interaction
  between the plunger and the drug
• Improve prefilled syringe functionality due to lower and more consistent break loose forces

Plungers are available for rapid order fulfillment. West and its partner, Daikyo Seiko, Ltd., offer primary configurations in market-proven elastomer formulations. Westar RU steam sterilized plungers are available with or without FluroTec^® film, fit standard prefillable syringes and comply with USP, JP and Ph. Eur. requirements.

The Westar RU steam sterilization process is fully validated and backed by the technical and regulatory expertise and support that West is known for.

West FluroTec^® and Westar^®: An Unbeatable Combination
West FluroTec barrier film and Westar processing are recommended for syringe plungers. FluroTec can help cut the risk of interaction between drug and plunger, and Westar processed plungers are delivered ready-to-sterilize or ready-to-use.

Visit www.WestPFSsolutions.com for additional information and solutions for prefillable syringes.

FluroTec^® is a registered trademark of West Pharmaceutical Services, Inc., in the United States and other jurisdictions.