The SmartDose® 3.5 On-Body Delivery System (OBDS) from West Pharmaceutical Services represents a major advancement in drug containment and delivery technology. This innovative platform enables patients to self-administer medication through a wearable, battery-powered injector that delivers precise doses subcutaneously. Designed with patient convenience and safety in mind, SmartDose® 3.5 integrates engineering excellence with intuitive design for a seamless self-administration experience.
The first combination product incorporating the SmartDose® 3.5 OBDS received U.S. Food and Drug Administration (FDA) approval in 2016, marking a milestone in the evolution of injectable drug delivery. Featuring a polymer-based, pre-fillable cartridge and developed through extensive human factors and usability testing, SmartDose® 3.5 delivers a truly patient-centric approach—enhancing comfort, confidence, and adherence for those managing chronic therapies.
- Wearable, on-body injector for hands-free dosing
- Pre-fillable, polymer-based cartridge for consistent performance
- Incorporates human factors and usability testing
- Improves comfort, safety, and patient adherence
SmartDose® 3.5 OBDS bridges the gap between pharmaceutical innovation and real-world patient experience—empowering patients to manage their therapies with greater independence and ease.



