Armstrong Healthcare

Armstrong Pharmaceuticals, a subsidiary of Amphastar Pharmaceuticals, is a specialty pharmaceutical company based in Canton, Massachusetts, that focuses on the development and production of respiratory and inhalation therapies. The company is most notably recognized for manufacturing Primatene Mist, the only FDA-approved over-the-counter epinephrine inhaler for the temporary relief of symptoms associated with intermittent asthma. Armstrong specializes in complex manufacturing processes, particularly metered-dose inhalers (MDIs) and other inhalation drug delivery systems that require high precision and regulatory compliance. As a key manufacturing and R&D arm of Amphastar, the company supports a broader portfolio of emergency medications and specialty generics, including glucagon and epinephrine injections. Their expertise extends to handling specialized propellants and complex formulations for various respiratory conditions.