Allerex Laboratory

Allerex Laboratory was a Canadian biotechnology company specializing in the development and manufacture of allergenic extracts for diagnostic and therapeutic use. The company's primary focus was on providing allergists with the tools necessary for skin prick testing and subcutaneous immunotherapy (SCIT). Its product catalog included a diverse array of extracts derived from pollens, dust mites, animal epithelia, and fungi. Allerex was eventually acquired by Greer Laboratories, a leader in the allergy immunotherapy space, and its operations were integrated into the broader Stallergenes Greer organization. The company played a significant role in the Canadian allergy market by supplying standardized reagents for clinical practice.