Autoinjectors

An autoinjector is an injection device that enables the user to deliver a predetermined drug dosage through self-injection. It contains a pre-filled primary container that holds a fixed amount of drug formulation.

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What is an autoinjector

Autoinjectors are devices designed to deliver a single, pre‑set dose of medicine with minimal steps. Each autoinjector contains a pre‑filled container and is ready to use, removing the need for dose preparation, cartridge handling, or repeated setup. With intuitive operation, clear feedback, and ergonomic design, autoinjectors are intended to be easy to use even for patients new to medical devices. This makes self‑injection more accessible, reliable, and suitable for treatment at scale, particularly as therapies shift toward home‑based care.

This is in contrast to pen injectors, which typically hold multiple doses and require needle attachment with each use, and support repeated dosing routines over time.

Exploring the basics of autoinjectors What to consider in autoinjector development projects

SHL Medical's Reunite reusable autoinjector with Needle Isolation Technology

The makings of an autoinjector

Behind every SHL Medical autoinjector is a fully integrated value chain. From toolmaking and molding to development, regulatory support, and final assembly, our end-to-end capabilities give customers a seamless path from concept to commercialization.

Watch how vertical integration helps us deliver the quality, precision, and reliability trusted by leading pharma and biotech companies worldwide.

How autoinjectors are made

1.5 billion autoinjectors shipped worldwide

This milestone reflects decades of trusted partnerships with leading pharmaceutical and biotech companies, and SHL Medical’s proven ability to deliver self-injection solutions at global scale. The company has supported more than 60 combination product launches across 75+ markets and a wide range of therapeutic areas. With deep engineering expertise, end-to-end manufacturing capabilities, and a global footprint, SHL Medical helps millions of patients access safe, high-quality self-injection systems every day.

SHL Medical Reaches 1.5 Billion Autoinjectors Shipped