Magno-Humphries Laboratories

Magno-Humphries Laboratories is a pharmaceutical and nutraceutical company based in Tigard, Oregon, specializing in the manufacture and distribution of over-the-counter (OTC) medications and dietary supplements. Founded in 1954, the company is historically significant as the original developer of the Mag-Ox 400 brand, a leading magnesium supplement, which was later sold to Akorn. Currently, Magno-Humphries operates as a manufacturer of a wide array of generic OTC products, including antacids, stool softeners, and vitamin formulations. The company serves as a major supplier for private-label programs at national retail pharmacies and healthcare distributors. Their operations focus on high-quality GMP manufacturing of small molecule oral solids and liquids.