Mallinckrodt

Mallinckrodt Pharmaceuticals is a global specialty pharmaceutical company with a rich history spanning over 150 years. Established in 1867 by the Mallinckrodt brothers in St. Louis, Missouri, the company has evolved into a leading provider of specialty pharmaceuticals and medical imaging agents.

The company's product portfolio is divided into two main segments: Specialty Pharmaceuticals and Medical Imaging.

Specialty Pharmaceuticals

This segment focuses on branded drugs for the treatment of autoimmune and rare diseases in areas such as neurology, rheumatology, nephrology, pulmonology, and ophthalmology.

Notable products include Acthar® Gel, an injectable biopharmaceutical used for conditions like infantile spasms and acute exacerbations of multiple sclerosis, and Terlivaz™, a treatment for certain kidney diseases.

The company also offers immunotherapy, oncology, neonatal respiratory critical care therapies, analgesics, and gastrointestinal products.

Medical Imaging

The Medical Imaging segment provides contrast media and radiopharmaceuticals essential for diagnostic imaging procedures.

Key products include Optiray®, an iodide-based contrast medium for CT scans, and Optimark®, a gadolinium-based contrast agent used in MRI scans of the brain and liver.

Recent Merger and Strategic Growth

In March 2025, Mallinckrodt announced a merger with Endo International plc, aiming to create a diversified pharmaceutical leader valued at nearly $7 billion.

This strategic consolidation is expected to enhance capabilities in treating inflammatory and autoimmune diseases as well as urology conditions.

Headquarters and Locations

Mallinckrodt is headquartered in Dublin, Ireland, and operates globally.

The company has facilities in the United States, Ireland, Japan, and other countries.

In the United States, it maintains a significant presence in St. Louis, Missouri, where its operational headquarters are located.

• St. Louis, MO, USA – Operational headquarters
• Saint Louis, MO, USA – Additional facility

Mission and Values

The company's mission, "Listening for Needs, Delivering Solutions," reflects its commitment to addressing complex medical challenges through innovative and patient-centric approaches.

Mallinckrodt's core values include Patient-Centric, Integrity, Innovative, and Collaborative guiding its operations and strategic decisions.