Allergy Laboratories of Ohio

Allergy Laboratories is an FDA-licensed pharmaceutical manufacturer specializing in the production of allergenic extracts, sterile diluents, and sterile empty vials. Established in 1923, the company provides essential products for the diagnosis and immunotherapy of allergic conditions, including environmental, food, and insect venom allergies. In addition to its proprietary product portfolio, the company operates as a Contract Manufacturing Organization (CMO) providing aseptic filling, lyophilization, and quality control services for the life sciences industry. Formerly known as Allergy Laboratories of Ohio during its time as a subsidiary of United-Guardian, the company is now an independent entity headquartered in Oklahoma City. It maintains a long-standing reputation for quality and compliance in the allergy and immunology sectors, serving clinics and pharmaceutical partners nationwide.